List of special elections to the United States House of Representatives

Below is a list of special elections to the United States House of Representatives. Such elections are called by state governors to fill vacancies that occur when a member of the House of Representatives dies or resigns before the biennial general election. Winners of these elections serve the remainder of the term and are usually candidates in the next general election for their districts.

In the United States, these contests are called "special elections." They are sometimes held on the regular Election Day like regular congressional elections but often they are on different days as determined by local statutes. Despite their name, however, special elections to the U.S. House of Representatives happen often. Furthermore, one published study shows that special elections are explained by the same factors as regular congressional elections.^[1] Special elections to the U.S. House have occurred at least once in all states except Idaho. A few special elections for territorial delegates to Congress have also been held.

A 2016 study of special elections to the House of Representatives found "that while candidate characteristics affect special election outcomes, presidential approval is predictive of special election outcomes as well. Furthermore, we find that the effect of presidential approval on special election outcomes has increased in magnitude from 1995 to 2014, with the 2002 midterm representing an important juncture in the nationalization of special elections."^[1]

List of special elections

Con­gress[a]	District	Original	Cause of vacancy	Winner	Date[b] (linked to election article)
1st	NH at-large	Benjamin West[c] (Pro-Admin)	Declined to serve	Abiel Foster (Pro-Admin)	June 22, 1789[d]
1st	VA 9	Theodorick Bland (Anti-Admin)	Died	William B. Giles (Anti-Admin)	July 1790[d]
1st	CT at-large	Pierpont Edwards[e] (Pro-Admin)	Resigned	Jeremiah Wadsworth (Pro-Admin)	December 16, 1790[d]
2nd	NY 1	James Townsend[e] (Pro-Admin)	Died	Thomas Tredwell (Anti-Admin)	April 26–28, 1791[d]
2nd	CT at-large	Roger Sherman (Pro-Admin)	Declined to serve	Amasa Learned (Pro-Admin)	September 19, 1791[d]
2nd	MD 3	William Pinkney (Pro-Admin)	Resigned	John Francis Mercer (Anti-Admin)	October 26–29, 1791[d]
2nd	GA 1	Anthony Wayne (Anti-Admin)	Disqualified	John Milledge (Anti-Admin)	July 9, 1792[d]
2nd	MD 2	Joshua Seney (Anti-Admin)	Resigned	William Hindman (Pro-Admin)	January 7–10, 1793[d]
3rd	CT at-large	Jonathan Sturges[e] (Pro-Admin)	Resigned	Uriah Tracy (Pro-Admin)	April 8, 1793[d][f]
3rd	CT at-large	Benjamin Huntington (Pro-Admin)	Declined to serve	Jonathan Ingersoll (Pro-Admin)	September 16, 1793[d]
3rd	CT at-large	Stephen M. Mitchell (Pro-Admin) Jonathan Ingersoll (Pro-Admin)	Declined to serve	Joshua Coit (Pro-Admin) Zephaniah Swift (Pro-Admin)	November 11, 1793[d]
3rd	MD 2	John Francis Mercer (Anti-Admin)	Resigned	Gabriel Duvall (Anti-Admin)	May 5, 1794[d]
3rd	SC 5	Alexander Gillon (A)	Died October 6, 1794	Robert Goodloe Harper (P)	October 13–14, 1794
3rd	MD 3	Uriah Forrest (P)	Resigned	Benjamin Edwards (P)	December 8, 1794
3rd	NJ at-large	Abraham Clark (Pro-Admin)	Died September 15, 1794	Aaron Kitchell (Pro-Admin)	January 11, 1795
4th	SC 2	John Barnwell[e] (F)	Declined to serve	Wade Hampton (DR)	January 19–20, 1795[d]
4th	CT at-large	Jonathan Trumbull[e] (F)	Resigned	Nathaniel Smith (F)	April 13, 1795[d]
4th	NC 4	Alexander Mebane (DR)	Died July 5, 1795	Absalom Tatom (DR)	August 13–14, 1795[d]
4th	MD 2	Gabriel Duvall (DR)	Resigned March 28, 1796	Richard Sprigg (DR)	April 18, 1796[d]
4th	MA 10	Benjamin Goodhue (F)	Resigned	Samuel Sewall (F)	September 12, 1796[d]
4th	CT at-large	James Hillhouse (F)	Elected U.S. Senator May 12, 1796; resigned in the fall of 1796	James Davenport (F)	September 19, 1796[d]
4th	MD 3	Jeremiah Crabb (F)	Resigned in 1796 after June 1	William Craik (F)	October 3, 1796[d]
4th	PA 5	Daniel Hiester (DR)	Resigned	George Ege (F)	October 11, 1796[d]
4th	RI at-large	Benjamin Bourne (F)	Resigned in October 1796	Elisha R. Potter (F)	November 15, 1796[d]
4th	MA 1	Theodore Sedgwick (F)	Resigned in early June 1796	Thomson J. Skinner (DR)	November 21, 1796[d]
4th	NC 4	Absalom Tatom (DR)	Resigned June 1, 1796	William Strudwick (F)	November 23, 1796[d]
4th	CT at-large	Uriah Tracy (F)	Resigned October 13, 1796	Samuel W. Dana (F)	December 5, 1796[d]
5th	RI at-large	Benjamin Bourne (F)	Resigned in October 1796	Elisha R. Potter (F)	November 15, 1796[d]
5th	CT at-large	Uriah Tracy[e] (F) Zephaniah Swift (F)	Declined to serve	John Allen (F) James Davenport (F)	April 10, 1797[d]
5th	VT 2	Daniel Buck (F)	Declined to serve	Lewis R. Morris (F)	May 23, 1797[d]
5th	MA 11	Theophilus Bradbury (F)	Resigned July 24, 1797	Bailey Bartlett (F)	August 4, 1797[d]
5th	NH at-large	Jeremiah Smith (F)	Resigned	Peleg Sprague (F)	August 28, 1797
5th	RI at-large	Elisha R. Potter (F)	Resigned in July 1797	Thomas Tillinghast (F)	August 29, 1797[d]
5th	SC 1	William L. Smith (F)	Resigned July 10, 1797	Thomas Pinckney (F)	September 4–5, 1797[d]
5th	CT at-large	James Davenport (F)	Died August 3, 1797.[3]	William Edmond (F)	September 18, 1797[d]
5th	PA 5	George Ege (F)	Resigned in October 1797	Joseph Hiester (DR)	October 10, 1797[d]
5th	NH at-large	Jeremiah Smith (F)	Resigned June 26, 1797	Peleg Sprague (F)	October 30, 1797[d]
5th	NC 10	Nathan Bryan (DR)	Died June 4, 1798	Richard D. Spaight (DR)	August 2, 1798[d]
5th	PA 1	John Swanwick (DR)	Died August 1, 1798	Robert Waln (F)	October 9, 1798[d]
5th	PA 4	Samuel Sitgreaves (F)	Resigned in 1798	Robert Brown (DR)	October 9, 1798[d]
5th	CT at-large	Joshua Coit (F)	Died September 5, 1798	Jonathan Brace (F)	October 22, 1798[d]
5th	VA 9	William B. Giles (DR)	Resigned October 2, 1798	Joseph Eggleston (DR)	November 1, 1798[d]
6th	MD 7	Joshua Seney[e] (DR)	Died October 20, 1798	Joseph H. Nicholson (DR)	November 29, 1798[d]
6th	CT at-large	John Allen (F)	Declined to serve	Elizur Goodrich (F)	September 16, 1799[d]
6th	NH at-large	Peleg Sprague (F)	Declined to serve	James Sheafe (F)	November 18, 1799[d]
6th	NY 1	Jonathan N. Havens (DR)	Died October 25, 1799	John Smith (DR)	December 27–29, 1799[d]
6th	VA 13	John Marshall (F)	Resigned	Littleton W. Tazewell (DR)	June 7, 1800
6th	NH at-large	William Gordon (F)	Resigned	Samuel Tenney (F)	August 25, 1800
6th	CT at-large	Jonathan Brace (F)	Resigned in May 1800	John C. Smith (F)	September 15, 1800[d]
6th	MA 10	Samuel Sewall (F)	Resigned January 10, 1800	Nathan Read (F)	October 20, 1800[d]
6th	NH at-large	William Gordon (F)	Resigned	Samuel Tenney (F)	October 27, 1800[d]
6th	MA 3	Samuel Lyman (F)	Resigned November 6, 1800	Ebenezer Mattoon (F)	December 15, 1800[d]
6th	MA 4	Dwight Foster (F)	Resigned	Levi Lincoln (DR)	December 15, 1800[d][f]
6th	PA 8	Thomas Hartley (F)	Died December 21, 1800	John Stewart (DR)	January 15, 1801[d][f]
7th	GA at-large	James Jones[e] (DR)	Died January 11, 1801	John Milledge (DR)	March 23, 1801[d]
7th	CT at-large	Elizur Goodrich[e] (F)	Resigned	Calvin Goddard (F)	April 9, 1801[d]
7th	MA 14	George Thatcher[c] (F)	Declined to seek re-election	Richard Cutts (DR)	June 22, 1801[d]
7th	NC 8	David Stone[e] (DR)	Resigned	Charles Johnson (DR)	August 6–7, 1801[d]
7th	MA 4	Levi Lincoln (DR)	Declined to serve	Seth Hastings (F)	June 22, 1801[d]
7th	MA 14	George Thatcher (F)	Declined to serve	Richard Cutts (DR)	June 22, 1801
7th	CT at-large	William Edmond[c] (F)	Declined to serve	Benjamin Tallmadge (F)	September 21, 1801[d]
7th	MA 12	Silas Lee (F)	Resigned	Vacant	September 25, 1801
7th	NC 8	David Stone (F)	Resigned before the start of the 7th Congress	Charles Johnson (DR)	August 6, 1801
7th	NY 5	Thomas Tillotson[c] (DR)	Resigned	Theodorus Bailey (DR)	October 6–8, 1801[d]
7th	NY 6	John Bird[c] (F)	Resigned July 25, 1801	John P. Van Ness (DR)	October 6–8, 1801[d]
7th	PA 4	Peter Muhlenberg (DR)	Declined to serve	Isaac Van Horne (DR)	October 13, 1801[d]
7th	PA 12	Albert Gallatin (DR)	Declined to serve	William Hoge (DR)	October 13, 1801[d]
7th	TN at-large	William C. C. Claiborne[c] (DR)	Resigned	William Dickson (DR)	October 29–30, 1801[d]
7th	MD 2	Richard Sprigg (DR)	Resigned April 11, 1802	Walter Bowie (DR)	March 2, 1802[d]
7th	GA at-large	Benjamin Taliaferro (DR)	Resigned	David Meriwether (DR)	April 5, 1802[d]
7th	SC 4	Thomas Sumter (DR)	Resigned	Richard Winn (DR)	April 12–13, 1802[d]
7th	MA 12	None	Failure to elect	Samuel Thatcher (F)	July 29, 1802[d]
7th	NH at-large	Joseph Peirce (F)	Resigned	Samuel Hunt (F)	August 30, 1802[d]
7th	NC 8	Charles Johnson (DR)	Died July 23, 1802	Thomas Wynns (DR)	October 15, 1802[d]
8th	NY 7	John Cantine[e] (F)	Declined to serve	Josiah Hasbrouck (DR)	April 26–28, 1803[d]
8th	CT at-large	Elias Perkins[c] (F)	Declined to serve	Simeon Baldwin (F)	September 5, 1803[d]
8th	NY 6	Isaac Bloom[c] (DR)	Died	Daniel C. Verplanck (DR)	September 14–16, 1803[d]
8th	GA at-large	John Milledge[e] (DR)	Milledge was elected Governor of Georgia	Joseph Bryan (DR)	October 3, 1803[d]
8th	NY 1	John Smith (DR)	Resigned	Samuel Riker (DR)	April 24–26, 1804[d]
9th	NY 2	Daniel D. Tompkins[e] (DR)	Declined to serve	Gurdon S. Mumford (DR)	September 11–13, 1804[d]
8th	MA 12	Thomson J. Skinner (DR)	Resigned	Simon Larned (DR)	September 17, 1804[d]
8th	PA 10	William Hoge (DR)	Resigned October 15, 1804	John Hoge (DR)	November 2, 1804[d][f]
8th	VA 13	John Johns Trigg (DR)	Died	Christopher H. Clark (DR)	October 1804[d]
8th	MD 4	Daniel Hiester (DR)	Died	Roger Nelson (DR)	October 1, 1804[d]
8th	VA 5	Andrew Moore (DR)	Resigned	Alexander Wilson (DR)	November 13, 1804[d]
8th	NY 3	Samuel L. Mitchill (DR)	Resigned	George Clinton (DR)	January 2–4, 1805[d]
9th	SC 8	John B. Earle[c] (DR)	Declined to serve	Elias Earle (DR)	September 26–27, 1805[d]
9th	NC 5	James Gillespie[e] (DR)	Died	Thomas Kenan (DR)	August 8, 1805[d]
9th	CT at-large	Calvin Goddard[c] (F)	Declined to serve	Timothy Pitkin (F)	September 16, 1805[d][f]
		Roger Griswold[c] (F)	Declined to serve	Lewis B. Sturges (F)
9th	DE at-large	James A. Bayard (F)	Declined to serve	James M. Broom (F)	October 1, 1805[d]
9th	PA 4	John A. Hanna (DR)	Died July 23, 1805	Robert Whitehill (DR)	October 8, 1805[d]
9th	PA 11	John B. Lucas (DR)	Declined to serve	Samuel Smith (DR)	October 8, 1805[d]
9th	NC 10	Nathaniel Alexander[c] (DR)	Resigned	Evan S. Alexander (DR)	January 23–24, 1806[d]
9th	GA at-large	Joseph Bryan (DR)	Resigned	Dennis Smelt (DR)	September 1, 1806[d][f]
9th	CT at-large	John C. Smith (F)	Resigned	Theodore Dwight (F)	September 15, 1806[d]
9th	MD 7	Joseph H. Nicholson (DR)	Resigned	Edward Lloyd (DR)	September 27/October 4, 1806[d]
9th	VA 13	Christopher H. Clark (DR)	Resigned	William A. Burwell (DR)	November 1806[d]
9th	PA 1	Michael Leib (DR)	Resigned	John Porter (DR)	November 27, 1806[d]
9th	GA at-large	Thomas Spalding (DR)	Resigned	William W. Bibb (DR)	December 1, 1806[d]
10th	SC 6	Levi Casey[e] (DR)	Died	Joseph C. Calhoun (DR)	June 1–2, 1807[d]
10th	MA 12	Barnabas Bidwell[c] (DR)	Resigned	Ezekiel Bacon (DR)	July 13, 1807[d]
10th	DE at-large	James M. Broom (F)	Declined to serve	Nicholas Van Dyke (F)	October 6, 1807[d]
10th	NC 7	John Culpepper (F)	Seat declared vacant from January to February 1808	John Culpepper (F)	February 1, 1808[d]
10th	NJ at-large	Ezra Darby (DR)	Died	Adam Boyd (DR)	March 8–9, 1808[d]
10th	NY 12	David Thomas (DR)	Resigned	Nathan Wilson (DR)	April 26–28, 1808[d]
10th	MA 2	Jacob Crowninshield (DR)	Died	Joseph Story (DR)	May 4, 1808[d]
10th	RI at-large	Nehemiah Knight (DR)	Died	Richard Jackson Jr. (F)	August 30, 1808[d]
10th	VT 1	James Witherell (DR)	Resigned	Samuel Shaw (DR)	September 6, 1808[d][f]
10th	VA 17	John Claiborne (DR)	Died	Thomas Gholson Jr. (DR)	September 8, 12, 26, 1808[d]
10th	PA 1	Joseph Clay (DR)	Resigned after March 28, 1808	Benjamin Say (DR)	October 11, 1808[d]
11th	PA 1	Benjamin Say (DR)	Resigned in June 1809	Adam Seybert (DR)	October 10, 1809[d][f]
11th	VA 21	Wilson C. Nicholas (DR)	Resigned	David S. Garland (DR)	December 1809[d]
11th	NY 2	William Denning[c] (DR)	Resigned	Samuel L. Mitchill (DR)	April 24–26, 1810[d]
11th	KY 5	Benjamin Howa (DR)	Resigned	William T. Barry (DR)	August 6, 1810[d]
11th	CT at-large	Samuel W. Dana (F)	Resigned	Ebenezer Huntington (F)	September 17, 1810[d]
11th	MD 4	Roger Nelson (DR)	Resigned	Samuel Ringgold (DR)	October 1, 1810[d]
11th	NJ at-large	James Cox (DR)	Died	John A. Scudder (DR)	October 30–31, 1810[d]
11th	MA 10	Jabez Upham (F)	Resigned	Joseph Allen (F)	October 8, 1810[d][f]
11th	MA 11	William Stedman (F)	Resigned	Abijah Bigelow (F)	October 8, 1810[d][f]
11th	VA 1	John G. Jackson (DR)	Resigned	William McKinley (DR)	November 1810[d]
11th	MD 7	John Brown (DR)	Resigned	Robert Wright (DR)	November 15, 1810[d]
11th	SC 1	Robert Marion (DR)	Resigned	Langdon Cheves (DR)	December 31, 1810[d][f]
12th	MD 7	John Brown[e] (DR)	Resigned before the close of the previous Congress	Robert Wright (DR)	November 15, 1810[d][g]
12th	MD 6	John Montgomery[c] (DR)	Resigned	Stevenson Archer (DR)	October 2, 1811[d]
12th	MA 4	Joseph B. Varnum[c] (DR)	Resigned	William M. Richardson (DR)	November 4, 1811[d][f]
12th	MA 17	Barzillai Gannett[c] (DR)	Resigned	Francis Carr (DR)	April 6, 1812[d][f]
12th	GA at-large	Howell Cobb (DR)	Resigned before October 1812	William Barnett (DR)	October 5, 1812[d][f]
12th	NY 6	Robert L. Livingston (F)	Resigned	Thomas P. Grosvenor (F)	December 15–17, 1812[d]
12th	NC 3	Thomas Blount (DR)	Died February 7, 1812	William Kennedy (DR)	January 11, 1813[d]
13th	PA 13	John Smilie[e] (DR)	Died December 30, 1812	Isaac Griffin (DR)	February 16, 1813[d]
13th	OH 6	John S. Edwards[e] (F)	Died	Reasin Beall (DR)	April 20, 1813[d]
13th	NY 15	William Dowse[e] (F)	Died	John M. Bowers[h] (F)	April 27–29, 1813[d]
13th	KY 8	John Simpson[e] (DR)	Died January 22, 1813	Stephen Ormsby (DR)	April 29, 1813[d]
13th	PA 15	Abner Lacock[e] (DR)	Resigned March 3, 1813	Thomas Wilson (DR)	May 4, 1813[d][f]
13th	OH 3	Duncan McArthur[c] (DR)	Declined to serve	William Creighton (DR)	May 10, 1813[d]
13th	PA 5	Robert Whitehill (DR)	Died April 8, 1813	John Rea (DR)	May 11, 1813[d][f]
13th	PA 3	John Gloninger (F)	Resigned August 2, 1813	Edward Crouch (DR)	October 12, 1813[d][f]
13th	PA 7	John M. Hyneman (DR)	Resigned August 2, 1813	Daniel Udree (DR)	October 12, 1813[d][f]
13th	GA at-large	William W. Bibb (DR)	Resigned	Alfred Cuthbert (DR)	December 13, 1813[d][f]
13th	NY 2	Egbert Benson (F)	Resigned	William Irving (DR)	December 28–30, 1813[d]
13th	KY 2	Henry Clay (DR)	Resigned	Joseph H. Hawkins (DR)	February 28, 1814[d]
13th	MA 4	William M. Richardson (DR)	Resigned	Samuel Dana (DR)	May 23, 1814[d]
13th	VA 11	John Dawson (DR)	Died	Philip P. Barbour (DR)	June 1814[d]
13th	MA 12	Daniel Dewey (F)	Resigned	John W. Hulbert (F)	August 4, 1814[d]
13th	NH at-large	Samuel Smith (F)	Failure to elect.[i]	Vacant	August 29, 1814[d]
13th	TN 5	Felix Grundy (DR)	Resigned	Newton Cannon (DR)	September 15–16, 1814[d]
13th	NJ 3	Jacob Hufty [j] (F)	Died May 20, 1814	Thomas Bines (DR)	October 10–11, 1814[d]
13th	OH 6	Reasin Beall (DR)	Resigned June 7, 1814	David Clendenin (DR)	October 11, 1814[d][f]
13th	PA 2	Jonathan Roberts (DR)	Resigned February 24, 1814	Samuel Henderson (F)	October 11, 1814[d][f]
13th	PA 3	James Whitehill (DR)	Resigned September 1, 1814	Amos Slaymaker (F)	October 12, 1814[d][f]
14th	NY 6	Jonathan Fisk (DR)	Resigned	James W. Wilkin (DR)	April 1815
14th	NY 12	Benjamin Pond (DR)	Died October 14, 1814	Asa Adgate (DR)	April 1815
14th	VA 15	Matthew Clay (DR)	Died May 27, 1815	John Kerr (DR)	October 1815
14th	PA 1	Jonathan Williams (DR)	Died May 16, 1815	John Sergeant (F)	October 10, 1815
14th	PA 3	Amos Ellmaker (DR)	Resigned July 3, 1815	James M. Wallace (DR)	October 10, 1815
14th	PA 9	David Bard (DR)	Died March 12, 1815	Thomas Burnside (DR)	October 10, 1815
14th	TN 2	John Sevier (DR)	Died September 24, 1815	William G. Blount (DR)	December 7–8, 1815
14th	NC 6	Nathaniel Macon (DR)	Resigned	Weldon N. Edwards (DR)	January 22, 1816
14th	MD 5	Nicholas R. Moore (DR)	Resigned in 1815	Samuel Smith (DR)	January 27, 1816
14th	NY 20	Enos T. Throop (DR)	Resigned	Daniel Avery (DR)	September 1816
14th	MD 5	William Pinkney (DR)	Pinkney was named Minister to Russia	Peter Little (DR)	September 3, 1816
14th	PA 9	Thomas Burnside (DR)	Resigned in April 1816	William P. Maclay (DR)	October 8, 1816
14th	VA 18	Thomas Gholson Jr. (DR)	Died July 4, 1816	Thomas M. Nelson (DR)	October 10–28, 1816
14th	KY 1	James Clark (DR)	Resigned	Thomas Fletcher (DR)	December 2, 1816
14th	MD 3	Alexander C. Hanson (F)	Resigned	George Peter (F)	December 2, 1816
14th	MA 11	Elijah Brigham (F)	Died	Benjamin Adams (F)	December 2, 1816
14th	NC 8	Richard Stanford (DR)	Died April 16, 1816	Samuel Dickens (DR)	December 2, 1816
14th	OH 1	John McLean (DR)	Resigned in April 1816	William Henry Harrison (DR)	October 8, 1816
14th	GA at-large	Alfred Cuthbert (DR)	Resigned	Zadock Cook (DR)	December 1816
15th	PA 10	David Scott (DR)	Resigned	John Murray (DR)	October 14, 1817
15th	CT at-large	Sylvanus Blackus (F) Charles Dennison (F)	Died February 15, 1817	Ebenezer Huntington (F) Nathaniel Terry (F)	December 1, 1817
15th	NY 4	Henry B. Lee (DR)	Died February 18, 1817	James Tallmadge Jr. (DR)	December 1, 1817
15th	NC 7	Alexander McMillan (F)	Died	James Stewart (F)	January 1, 1818
15th	SC 6	John C. Calhoun (DR)	Resigned	Eldred Simkins (DR)	February 9, 1818
15th	PA 6	John Ross (DR)	Resigned February 24, 1818	Thomas J. Rogers (DR)	March 3, 1818
15th	PA 6	Samuel D. Ingham (DR)	Resigned July 6, 1818	Samuel Moore (DR)	October 13, 1818
15th	MA 20	Albion Parris (DR)	Resigned	Enoch Lincoln (DR)	November 4, 1818
15th	NC 11	Daniel M. Forney (DR)	Resigned	William Davidson (F)	November 7, 1818
15th	CT at-large	Uriel Holmes (F)	Resigned	Sylvester Gilbert (DR)	November 16, 1818
15th	PA 4	Jacob Spangler (DR)	Resigned April 20, 1818	Jacob Hostetter (DR)	November 16, 1818
15th	LA at-large	Thomas B. Robertson (DR)	Resigned	Thomas Butler (DR)	November 16, 1818
15th	VA 19	Peterson Goodwyn (DR)	Died February 21, 1818	John Pegram (DR)	November 16, 1818
15th	GA at-large	John Forsyth (DR)	Resigned	Robert R. Reid (DR)	January 4, 1819
16th	GA at-large	John Forsyth (DR)	Resigned	Robert R. Reid (DR)	January 4, 1819
16th	NJ at-large	John Condit (DR)	Resigned November 4, 1819	Charles Kinsey (DR)	February 1–2, 1820
16th	MA 13	Edward Dowse (DR)	Resigned	William Eustis (DR)	August 21, 1820
16th	PA 5	David Fullerton (DR)	Resigned May 15, 1820	Thomas G. McCullough (F)	October 10, 1820
16th	ME 1	John Holmes (DR)	Resigned	Joseph Dane (F)	November 7, 1820
16th	VA 1	James Pindall (F)	Resigned	Edward B. Jackson (DR)	November 13, 1820
16th	VA 10	George F. Strother (DR)	Resigned	Thomas L. Moore (DR)	November 13, 1820
16th	VA 20	James Johnson (DR)	Resigned	John C. Gray (DR)	November 13, 1820
16th	PA 7	Joseph Hiester (DR)	Resigned in December 1820	Daniel Udree (DR)	December 26, 1820
16th	NC 4	Jesse Slocumb (DR)	Died December 20, 1820	William S. Blackledge (DR)	February 7, 1821
17th	NJ at-large	John Linn (DR)	Died January 5, 1821	Lewis Condict (DR)	October 8–9, 1821
17th	OH 4	John C. Wright (DR)	Resigned March 3, 1821	David Chambers (DR)	October 9, 1821
17th	PA 5	James Duncan (DR)	Resigned in April 1821	John Findlay (DR)	October 9, 1821
17th	PA 10	William Cox Ellis (F)	Resigned July 20, 1821	Thomas Murray Jr. (DR)	October 9, 1821
17th	NY 6	Selah Tuthill (DR)	Died September 7, 1821	Charles Borland Jr. (DR)	November 6–8, 1821
17th	SC 9	John S. Richards (DR)	Declined to serve	James Blair (DR)	December 3, 1821
17th	KY 8	Wingfield Bullock (DR)	Died October 13, 1821	James D. Breckinridge (DR)	January 2, 1822
17th	NY 9	Solomon Van Rensselaer (DR)	Resigned	Stephen Van Rensselaer (F)	February 25–27, 1822
17th	DE at-large	Caesar A. Rodney (DR)	Resigned January 24, 1822	Daniel Rodney (F)	October 1, 1822
17th	PA 1	William Milnor (F)	Resigned May 8, 1822	Thomas Forrest (F)	October 1, 1822
17th	PA 6	Samuel Moore (DR)	Resigned May 20, 1822	Samuel D. Ingham (DR)	October 1, 1822
17th	PA 14	Henry Baldwin (DR)	Died May 8, 1822	Walter Forward (DR)	October 1, 1822
17th	IN at-large	William Hendricks (DR)	Resigned	Jonathan Jennings (DR)	December 2, 1822
17th	ME 2	Ezekiel Whitman (F)	Resigned June 1, 1822	Mark Harris (DR)	December 2, 1822
17th	PA 7	Ludwig Worman (F)	Died October 17, 1822	Daniel Udree (F)	December 10, 1822
17th	SC 9	James Blair (DR)	Resigned	John Carter (DR)	December 11, 1822
17th	SC 2	William Lowndes (DR)	Resigned May 8, 1822	James Hamilton Jr. (DR)	January 6, 1823
17th	MD 5	Samuel Smith (DR)	Resigned December 22, 1822	Isaac McKim (DR)	January 8, 1823
18th	MD 5	Samuel Smith (DR)	Resigned December 22, 1822	Isaac McKim (Jackson DR)	January 8, 1823
18th	NY 28	William B. Rochester (Adams DR)	Resigned	William Woods (Adams DR)	December 1, 1823
18th	VA 13	William Lee Ball (Crawford DR)	Died February 29, 1824	John Taliaferro (Crawford DR)	April 8, 1824[k]
18th	PA 8	Thomas J. Rogers (Jackson DR)	Resigned April 20, 1824	George Wolf (Jackson DR)	October 12, 1824
18th	PA 13	John Tod (Jackson DR)	Resigned	Alexander Thomson (Jackson DR)	October 12, 1824
18th	MA 10	None[l]	(See note)	John Bailey (DR)	December 13, 1824
18th	VT at-large	Charles Rich (DR)	Died October 15, 1824	Henry Olin (DR)	December 13, 1824[f]
18th	IN 1	William Prince (DR)	Died September 8, 1824	Jacob Call (Jackson DR)	December 23, 1824[f]
18th	NC 2	Hutchins Gordon Burton (Crawford DR)	Resigned	George Outlaw (Crawford DR)	January 6, 1825
18th	GA at-large	Thomas W. Cobb (Crawford DR)	Resigned	Richard Henry Wilde (Crawford DR)	February 7, 1825
19th	PA 16	James Allison Jr. (J)	Resigned	Robert Orr Jr. (J)	October 11, 1825
19th	PA 18	Patrick Farrelly (J)	Died January 12, 1826	Thomas H. Sill (NR)	March 14, 1826
19th	ME 5	Enoch Lincoln (DR)	Resigned	James W. Ripley (J)	September 11, 1826
19th	OH 10	David Jennings (NR)	Resigned May 25, 1826	Thomas Shannon (NR)	October 10, 1826
19th	PA 2	Joseph Hemphill (J)	Resigned May 1, 1826	Thomas Kittera (NR)	October 10, 1826
19th	PA 7	Henry Wilson (J)	Died August 14, 1826	Jacob Krebs (J)	October 10, 1826
19th	PA 13	Alexander Thomson (J)	Resigned May 1, 1826	Chauncey Forward (J)	October 10, 1826
20th	ME 1	William Burleigh (NR)	Died July 2, 1827	Rufus McIntire (J)	September 10, 1827
20th	GA 1	Edward Fenwick Tattnall[m] (J)	(See note)	George Rockingham Gilmer (J)	October 1, 1827
20th	DE at-large	Louis McLane (J)	Resigned	Kensey Johns Jr. (NR)	October 2, 1827
20th	OH 8	William Wilson (NR)	Died June 6, 1827	William Stanbery (J)	October 9, 1827
20th	PA 2	None[n]	Previous election was tied	John Sergeant (NR)	October 9, 1827
20th	GA 2	John Forsyth (J)	Resigned	Richard Henry Wilde (J)	November 17, 1827
20th	NJ at-large	George Holcombe (J)	Died January 4, 1828	James F. Randolph (NR)	November 3–4, 1828
20th	NJ at-large	Hedge Thompson (NR)	Died July 23, 1828	Thomas Sinnickson (NR)	November 3–4, 1828
20th	OH 6	William Creighton (NR)	Resigned	Francis Swaine Muhlenberg (NR)	December 2, 1828
21st	ME 4	Peleg Sprague (NR)	Resigned	George Evans (NR)	July 20, 1829
21st	PA 8	Samuel D. Ingham (J) George Wolf (J)	Ingham became U.S. Treasury Secretary March 6, 1829 Wolf was elected Governor of Pennsylvania	Peter Ihrie Jr. (J) Samuel A. Smith (J)	October 13, 1829
21st	PA 16	William Wilkins (J)	Resigned	Harmar Denny (Anti-M)	December 15, 1829
21st	OH 11	John M. Goodenow (J)	Resigned April 9, 1830	Humphrey H. Leavitt (J)	October 11, 1830
21st	ME 5	James W. Ripley (J)	Resigned	Cornelius Holland (J)	December 6, 1830
22nd	VT 2	Rollin Carolas Mallary (NR)	Died April 15, 1831	William Slade (Anti-M)	November 1, 1831
22nd	PA 11	William Ramsey (J)	Died September 29, 1831	Robert McCoy (J)	November 22, 1831
22nd	VT 1	Jonathan Hunt (NR)	Died May 15, 1832	Hiland Hall (NR)	January 1, 1833
23rd	PA 1	Joel B. Sutherland (J)	Resigned March 5, 1833	Joel B. Sutherland (J)[o]	October 8, 1833
23rd	OH 19	Humphrey H. Leavitt (J)	Resigned July 10, 1834	Daniel Kilgore (J)	October 14, 1834
23rd	OH 1	Robert T. Lytle (J)	Resigned March 10, 1834	Robert T. Lytle (J)	November 8, 1834
23rd	VT 5	Benjamin F. Deming (Anti-M)	Died July 11, 1834	Henry Fisk Janes (Anti-M)	November 10, 1834
23rd	CT at-large Seat A	William W. Ellsworth (NR)	Resigned July 8, 1834	Joseph Trumbull (NR)	December 1, 1834
23rd	CT at-large Seat B	Jabez W. Huntington (NR)	Resigned August 16, 1834	Phineas Miner (NR)	December 1, 1834
23rd	CT at-large Seat C	Samuel A. Foot (NR)	Resigned May 9, 1834	Ebenezer Jackson Jr. (NR)	December 1, 1834
24th	PA 24	John Banks (Anti-M)	Resigned April 2, 1836	John J. Pearson (NR)	October 11, 1836
24th	PA 13	Jesse Miller (J)	Resigned October 30, 1836	James Black (J)	November 4, 1836
24th	NJ at-large	Philemon Dickerson (J)	Resigned November 3, 1836	William Chetwood (W)	November 15–16, 1836
25th	PA 3	Francis J. Harper (D)	Died March 18, 1837	Charles Naylor (W)	June 29, 1837
25th	OH 17	Andrew W. Loomis (W)	Resigned October 20, 1837	Charles D. Coffin (W)	November 30, 1837
25th	PA 9	Henry A. P. Muhlenberg (D)	Resigned February 9, 1838	George M. Keim (D)	March 8, 1838
25th	ME 3	Jonathan Cilley (D)	Killed February 24, 1838	Edward Robinson (W)	April 28, 1838
25th	ME 5	Timothy J. Carter (D)	Died March 14, 1838	Virgil D. Parris (D)	May 29, 1838
25th	OH 16	Elisha Whittlesey (W)	Resigned July 9, 1838	Joshua Reed Giddings (W)	October 9, 1838
25th	OH 19	Daniel Kilgore (D)	Resigned July 4, 1838	Henry Swearingen (D)	November 5, 1838
26th	PA 14	William W. Potter (D)	Died October 28, 1839	George McCulloch (D)	November 20, 1839
26th	OH 4	Thomas Corwin (W)	Resigned May 30, 1840	Jeremiah Morrow (W)	October 13, 1840
26th	PA 22	Richard Biddle (Anti-M)	Resigned May 13, 1840	Henry M. Brackenridge (W)	October 13, 1840
26th	PA 13	William S. Ramsey (D)	Died October 17, 1840	Charles McClure (D)	November 20, 1840
27th	PA 13	William S. Ramsey (D)	Died October 17, 1840	Amos Gustine (D)	May 4, 1841
27th	PA 20	Enos Hook (D)	Resigned April 18, 1841	Henry W. Beeson (D)	May 25, 1841
27th	ME 4	George Evans (W)	Resigned	David Bronson (W)	May 31, 1841
27th	PA 18	Charles Ogle (W)	Died May 10, 1841	Henry Black (W)	June 8, 1841
27th	PA 2	John Sergeant (W)	Resigned September 15, 1841	Joseph Reed Ingersoll (W)	October 12, 1841
27th	PA 18	Henry Black (W)	Died November 28, 1841	James M. Russell (W)	December 21, 1841
27th	PA 17	Davis Dimock Jr. (D)	Died January 13, 1842	Almon Heath Read (D)	March 1, 1842
27th	OH 16	Joshua Reed Giddings (W)	Resigned March 22, 1842	Joshua Reed Giddings (W)	April 26, 1842
27th	PA 21	Joseph Lawrence (W)	Died April 17, 1842	Thomas M. T. McKennan (W)	May 20, 1842
27th	MA 1	Robert C. Winthrop (W)	Resigned	Nathan Appleton (W)	June 3, 1842
		Nathan Appleton (W)	Resigned September 28, 1842	Robert C. Winthrop (W)	November 14, 1842
28th	PA 21	William Wilkins (D)	Resigned February 14, 1844	Cornelius Darragh (W)	March 15, 1844
28th	PA 13	Henry Frick (W)	Died March 1, 1844	James Pollock (W)	April 9, 1844
28th	OH 10	Heman A. Moore (D)	Died April 3, 1844	Alfred P. Stone (D)	October 8, 1844
28th	OH 21	Henry R. Brinkerhoff (D)	Died April 30, 1844	Edward S. Hamlin (D)	October 8, 1844
28th	PA 12	Almon Heath Read (D)	Died June 3, 1844	George Fuller (D)	October 8, 1844
29th	NJ 2	Samuel G. Wright (W)	Died July 30, 1845	George Sykes (D)	October 7–8, 1845
29th	FL at-large	David Levy Yulee (D)	Declined seat to become U.S. Senator from Florida	William Henry Brockenbrough (D)	October 6, 1845
29th	GA 3	None[p]	(See note)	George W. Towns (D)	January 5, 1846
30th	OH 7	Thomas L. Hamer (D)	Died December 2, 1846	Jonathan D. Morris (D)	November 8, 1847
30th	PA 6	John W. Hornbeck (W)	Died June 16, 1848	Samuel A. Bridges (D)	February 23, 1848
31st	OH 6	Rodolphus Dickinson (D)	Died March 20, 1849	Amos E. Wood (D)	October 9, 1849
31st	VT 3	George Perkins Marsh (W)	Resigned	James Meacham (W)	November 7, 1849
31st	GA 1	Thomas Butler King (W)	Resigned	Joseph Webber Jackson (D)	February 4, 1850
31st	MA 1	Robert C. Winthrop (W)	Resigned	Samuel A. Eliot (W)	August 22, 1850
31st	IA 1	None	Seat declared vacant after contested election	Daniel F. Miller (W)	September 24, 1850
31st	NH 3	James Wilson II (W)	Resigned September 9, 1850	George W. Morrison (D)	October 8, 1850
31st	PA 15	Henry Nes (W)	Died September 10, 1850	Joel B. Danner (D)	October 8, 1850
31st	OH 6	Amos E. Wood (D)	Died November 19, 1850	John Bell (D)	December 23, 1850
31st	PA 11	Chester P. Butler (W)	Died October 5, 1850	John Brisbin (W)	December 31, 1850
32nd	ME 4	Charles Andrews (D)	Died April 30, 1852	Isaac Reed (W)	June 25, 1852
33rd	PA 8	Henry A. Muhlenberg (D)	Died January 9, 1854	J. Glancy Jones (D)	February 4, 1854
33rd	MA 1	Zeno Scudder (W)	Declined to serve	Thomas D. Eliot (W)	April 17, 1854
34th	VT 1	James Meacham (O)	Died August 23, 1856	George Tisdale Hodges (R)	September 2, 1856
35th	PA 12	John G. Montgomery (D)	Died April 24, 1857	Paul Leidy (D)	October 13, 1857
35th	PA 8	J. Glancy Jones (D)	Resigned October 30, 1858	William H. Keim (R)	November 30, 1858
36th	OH 14	Cyrus Spink (R)	Died May 31, 1859	Harrison G. O. Blake (R)	October 11, 1859
36th	PA 8	John Schwartz (ALD)	Died June 20, 1860	Jacob K. McKenty (D)	October 9, 1860
36th	ME 5	Israel Washburn Jr. (R)	Resigned January 1, 1861	Stephen Coburn (R)	November 6, 1860
37th	OH 7	Thomas Corwin (R)	Resigned March 12, 1861	Richard A. Harrison (U)	May 28, 1861
37th	OH 13	John Sherman (R)	Resigned March 21, 1861	Samuel T. Worcester (R)	May 28, 1861
37th	PA 2	Edward Joy Morris (R)	Resigned June 8, 1861	Charles J. Biddle (UD)	June 21, 1861
37th	PA 12	George W. Scranton (R)	Died March 24, 1861	Hendrick Bradley Wright (UD)	June 21, 1861
37th	PA 7	Thomas B. Cooper (D)	Died April 4, 1862	John D. Stiles (D)	May 24, 1862
37th	ME 2	Charles W. Walton (R)	Resigned	Thomas Fessenden (R)	December 1, 1862
38th	DE at-large	William Temple (D)	Died May 28, 1863	Nathaniel B. Smithers (U)	November 19, 1863
40th	OH 2	Rutherford B. Hayes (R)	Resigned July 20, 1867	Samuel Fenton Cary (IR)	October 8, 1867
40th	PA 12	Charles Denison (D)	Died June 27, 1867	George W. Woodward (D)	October 8, 1867
40th	OH 8	Cornelius S. Hamilton (R)	Killed December 22, 1867	John Beatty (R)	January 27, 1868
40th	PA 9	Thaddeus Stevens (R)	Died August 11, 1868	Oliver J. Dickey (R)	October 13, 1868
40th	PA 20	Darwin A. Finney (R)	Died August 25, 1868	Solomon Newton Pettis (R)	October 13, 1868
41st	MA 7	George S. Boutwell (R)	Resigned	George M. Brooks (R)	November 2, 1869
41st	OH 10	Truman H. Hoag (D)	Died February 5, 1870	Erasmus D. Peck (R)	April 5, 1870
41st	NC 4	John T. Deweese (R)	Resigned	Robert B. Gilliam (D)[q]	August 4, 1870
41st	NC 4	None	Died (see note above)	John Manning Jr. (D)	November 26, 1870
41st	SC 1	Benjamin F. Whittemore (R)	Resigned	Joseph Rainey (R)	December 12, 1870
41st	GA 4	Samuel F. Gove (R)	Elected, but not permitted to qualify	Jefferson F. Long (R)	December 22, 1870
42nd	OH 1	Aaron F. Perry (R)	Resigned	Ozro J. Dodds (D)	October 8, 1872
42nd	GA 4	Thomas J. Speer (R)	Died	Erasmus W. Beck (D)	October 29, 1872
42nd	PA 13	Ulysses Mercur (R)	Resigned December 2, 1872	Frank C. Bunnell (R)	December 24, 1872
43rd	OR 1	Joseph G. Wilson (R)	Died July 2, 1873	James Nesmith (D)	October 13, 1873
43rd	GA 8	None[r]	(See note)	Alexander H. Stephens (D)	December 1, 1873
43rd	OR at-large	Joseph G. Wilson (R)	Died July 2, 1873	James W. Nesmith (D)	December 1, 1873
43rd	OH 12	Hugh J. Jewett (D)	Resigned June 23, 1874	William E. Finck (D)	October 13, 1874
43rd	PA 23	Ebenezer McJunkin (R)	Resigned January 1, 1875	John M. Thompson (R)	November 3, 1874
44th	GA 9	None[s]	(See note)	Benjamin Harvey Hill (D)	May 5, 1875
44th	ME 4	Samuel F. Hersey (R)	Died February 3, 1875	Harris M. Plaisted (R)	September 13, 1875
44th	OR at-large	None[t]	Died May 1, 1875	Lafayette Lane (D)	October 25, 1875
44th	PA 12	Winthrop W. Ketchum (R)	Resigned July 19, 1876	William H. Stanton (D)	November 7, 1876
44th	ME 3	James G. Blaine (R)	Resigned July 10, 1876	Edwin Flye (R)	December 4, 1876
45th	GA 9	None	Benjamin Harvey Hill (D) resigned	Hiram Parks Bell (D)	April 13, 1877
45th	NE at-large	Frank Welch (R)	Died September 4, 1878	Thomas Jefferson Majors (R)	November 5, 1878
46th	GA 1	Julian Hartridge (D)	Died January 8, 1879	William Bennett Fleming (D)	February 10, 1879
46th	OH 19	James A. Garfield (R)	Resigned November 8, 1880	Ezra B. Taylor (R)	November 30, 1880
46th	NH 3	Evarts Worcester Farr (R)	Died November 30, 1880. (Winner elected to finish term)	Ossian Ray (R)	December 28, 1880
47th	NH 3	Evarts Worcester Farr (R)	Died November 30, 1880. (Winner elected to next term)	Ossian Ray (R)	December 28, 1880
47th	ME 2	William P. Frye (R)	Resigned	Nelson Dingley Jr. (R)	September 12, 1881
47th	RI 1	Nelson W. Aldrich (R)	Resigned	Henry J. Spooner (R)	November 22, 1881
47th	GA 8	Alexander H. Stephens (D)	Resigned	Seaborn Reese (D)	November 8, 1882
47th	UT at-large	George Q. Cannon (R)	Seat declared vacant	John Thomas Caine (D)	November 8, 1882
47th	OH 16	Jonathan T. Updegraff (R)	Died November 30, 1882	Joseph D. Taylor (R)	January 2, 1883
48th	OH 17	Jonathan T. Updegraff (R)	Died November 30, 1882	Joseph D. Taylor (R)	January 2, 1883
48th	WV 3	John E. Kenna (D)	Resigned	Charles P. Snyder (D)	May 15, 1883
48th	PA 19	William A. Duncan (D)	Died November 14, 1884	John A. Swope (D)	December 23, 1884
48th	RI 2	Jonathan Chace (R)	Resigned	Nathan F. Dixon III (R)	February 5, 1885
49th	PA 19	William A. Duncan (D)	Died November 14, 1884	John A. Swope (D)	November 3, 1885
49th	RI 2	William A. Pirce (R)	Candidate disqualified	Charles H. Page (D)	February 21, 1887
50th	NE 2	James Laird (R)	Died August 17, 1889	Gilbert L. Laws (R)	November 5, 1889
51st	PA 4	William D. Kelley (R)	Died January 9, 1890	John E. Reyburn (R)	February 18, 1890
51st	PA 3	Samuel J. Randall (D)	Died April 13, 1890	Richard Vaux (D)	May 20, 1890
52nd	SD at-large	John Rankin Gamble (R)	Died August 14, 1891	John L. Jolley (R)	November 3, 1891
51st	AR 2	John M. Clayton (R)	Was assassinated while contest was pending	Clifton R. Breckinridge (D)	November 4, 1890
51st	PA 27	Lewis F. Watson (R)	Died August 25, 1890	Charles W. Stone (R)	November 4, 1890
52nd	CA 3	Joseph McKenna (R)	Resigned	Samuel G. Hilborn (R)	November 8, 1892
52nd	OH 16	John G. Warwick (D)	Died August 14, 1892	Lewis P. Ohliger (D)	November 8, 1892
52nd	PA 24	Alexander K. Craig (D)	Died July 29, 1892	William A. Sipe (D)	November 8, 1892
53rd	RI 2	None	Failure to elect	Charles H. Page (D)	April 5, 1893
53rd	PA 8	William Mutchler (D)	Died June 23, 1893	Howard Mutchler (D)	August 7, 1893
53rd	MI 1	J. Logan Chipman (D)	Died August 17, 1893	Levi T. Griffin (D)	August 17, 1893
53rd	WI 4	John L. Mitchell (D)	Declined to serve	Peter J. Somers (D)	August 27, 1893
53rd	OH 10	William H. Enochs (R)	Died July 13, 1893	Hezekiah S. Bundy (R)	November 5, 1893
53rd	PA 2	Charles O'Neill (R)	Died November 25, 1893	Robert Adams Jr. (R)	December 19, 1893
53rd	NY 14	John R. Fellows (D)	Resigned	Lemuel E. Quigg (R)	January 30, 1894
53rd	VA 7	Charles T. O'Ferrall (D)	Resigned	Smith S. Turner (D)	January 30, 1894
53rd	PA at-large	William Lilly (R)	Died December 1, 1893	Galusha A. Grow (R)	January 20 or February 20, 1894
53rd	OH 3	George W. Houk (D)	Died February 9, 1894	Paul J. Sorg (D)	May 1, 1894
53rd	SC 1	William H. Brawley (D)	Resigned	James F. Izlar (D)	February 12, 1894
53rd	LA 4	Newton C. Blanchard (D)	Resigned	Henry W. Ogden (D)	March 12, 1894
53rd	MO 11	Charles F. Joy (R)	Lost contested election	John J. O'Neill (D)	April 3, 1894
53rd	CA 3	Samuel G. Hilborn (R)	Lost contested election	Warren B. English (D)	April 4, 1894
53rd	MD 1	Robert F. Brattan (D)	Died	W. Laird Henry (D)	May 10, 1894
53rd	MD 5	Barnes Compton (D)	Resigned	Charles E. Coffin (R)	May 15, 1894
53rd	KY 10	Marcus C. Lisle (D)	Died July 7, 1894	William M. Beckner (D)	July 7, 1894
53rd	KS 2	Edward H. Funston (R)	Lost contested election	Horace L. Moore (D)	August 2, 1894
53rd	WI 7	George B. Shaw (R)	Died August 27, 1894	Michael Griffin (R)	August 27, 1894
53rd	AR 2	Clifton R. Breckinridge (D)	Resigned	John S. Little (D)	November 1, 1894
53rd	OH 2	John A. Caldwell (R)	Resigned May 4, 1894	Jacob H. Bromwell (R)	November 6, 1894
53rd	AL 3	William C. Oates (D)	Resigned	George P. Harrison (D)	November 30, 1894
53rd	NY 15	Ashbel P. Fitch (D)	Resigned	Isidor Straus (D)	December 30, 1894
53rd	KY 9	Thomas H. Paynter (D)	Resigned	Vacant	January 5, 1895
53rd	IL 10	Philip S. Post (R)	Died January 6, 1895	George W. Prince (R)	December 2, 1895
53rd	MI 3	Julius C. Burrows (R)	Resigned	Vacant	January 13, 1895
53rd	PA 15	Myron B. Wright (R)	Died November 13, 1894	Edwin J. Jorden (R)	February 19, 1895
54th	PA 15	Myron B. Wright (R)	Died November 13, 1894	James H. Codding (R)	February 19, 1895
54th	GA 10	James C. C. Black (D)	Succeeded himself to fill a vacancy he caused[5]	James C. C. Black (D)	October 2, 1895
54th	MA 6	William Cogswell (R)	Died May 22, 1895	William Henry Moody (R)	November 5, 1895
54th	NY 10	None	Representative-elect Andrew J. Campbell (R) died December 6, 1894	Amos J. Cummings (D)	November 5, 1895
54th	IL 10	None	Philip S. Post (R) died January 6, 1895	George W. Prince (R)	December 2, 1895
54th	IL 18	Frederick Remann (R)	Died July 14, 1895	William F. L. Hadley (R)	December 2, 1895
54th	MI 3	Julius C. Burrows (R)	Resigned	Alfred Milnes (R)	December 2, 1895
54th	IL 3	Lawrence E. McGann (D)	Lost election contest	Hugh R. Belknap (R)	December 27, 1895
54th	TX 11	William H. Crain (D)	Died February 10, 1896	Rudolph Kleberg (D)	April 7, 1896
54th	MO 5	John C. Tarsney (D)	Lost election contest	Robert T. Van Horn (R)	February 27, 1896
54th	AL 4	Gaston A. Robbins (D)	Lost election contest	William F. Aldrich (R)	March 12, 1896
54th	VA 5	William R. McKenney (D)	Lost election contest	Robert T. Thorp (R)	May 2, 1896
54th	AL 5	James E. Cobb (D)	Lost election contest	Albert T. Goodwyn (P)	April 21, 1896
54th	SC 7	None	Seat declared vacant	J. William Stokes (D)	June 1, 1896
54th	NY 8	James J. Walsh (D)	Lost election contest	John M. Mitchell (R)	June 2, 1896
54th	SC 1	William Elliott (D)	Lost election contest	George W. Murray (R)	June 4, 1896
54th	IL 16	Finis E. Downing (D)	Lost election contest	John I. Rinaker (R)	June 5, 1896
54th	NC 6	James A. Lockhart (D)	Lost election contest	Charles H. Martin (P)	June 5, 1896
54th	AL 9	Oscar W. Underwood (D)	Lost election contest	Truman H. Aldrich (R)	June 9, 1896
54th	LA 5	None	Seat declared vacant after contested election	Charles J. Boatner (D)	June 10, 1896
54th	GA 3	Charles Frederick Crisp (D)	Died October 23, 1896	Charles R. Crisp (D)	December 19, 1896
54th	NY 19	Frank S. Black (R)	Resigned	Vacant	January 7, 1897
54th	KY 10	Joseph M. Kendall (D)	Lost election contest	Nathan T. Hopkins (R)	February 18, 1897
55th	PA 25	James J. Davidson (R)	Died January 2, 1897	Joseph B. Showalter (R)	April 20, 1897
55th	ME 3	Seth L. Milliken (R)	Died April 18, 1897	Edwin C. Burleigh (R)	June 21, 1897
55th	IN 4	William S. Holman (D)	Died April 22, 1896	Francis M. Griffith (D)	December 6, 1897
55th	SC 6	John L. McLaurin (D)	Resigned	James Norton (D)	December 6, 1897
55th	MO 1	None	Representative-elect Richard P. Giles (D) died November 17, 1896	James T. Lloyd (D)	June 1, 1897
55th	IL 6	Edward D. Cooke (R)	Died June 24, 1897	Henry S. Boutell (R)	November 23, 1897
55th	MA 1	Ashley B. Wright (R)	Died August 14, 1897	George P. Lawrence (R)	November 2, 1897
55th	NY 3	Francis H. Wilson (R)	Resigned	Edmund H. Driggs (D)	December 5, 1897
55th	AL 4	Thomas S. Plowman (D)	Lost election contest	William F. Aldrich (R)	February 9, 1898
55th	PA 23	William A. Stone (R)	Resigned	William H. Graham (R)	November 29, 1898
55th	VA 4	Sydney P. Epes (D)	Lost election contest	Robert T. Thorp (R)	March 23, 1898
55th	MA 13	John Simpkins (R)	Died March 27, 1898	William S. Greene (R)	May 31, 1898
55th	VA 2	William A. Young (D)	Lost election contest	Richard A. Wise (R)	April 26, 1898
55th	MS 2	William V. Sullivan (D)	Resigned	Thomas Spight (D)	July 5, 1898
55th	OH 19	Stephen A. Northway (R)	Died September 8, 1898	Charles W. F. Dick (R)	November 8, 1898
55th	MS 6	William F. Love (D)	Died October 16, 1898	Frank A. McLain (D)	December 12, 1898
55th	NY 34	Warren B. Hooker (R)	Resigned	Vacant	November 10, 1898
55th	TN 4	Benton McMillin (D)	Resigned	Vacant	January 6, 1899
55th	NY 2	Denis M. Hurley (R)	Died	Redistricted to NY 7	February 26, 1899
56th	ME 2	Nelson Dingley Jr. (R)	Died	Charles E. Littlefield (R)	June 19, 1899
56th	ME 1	Thomas Brackett Reed (R)	Resigned	Amos L. Allen (R)	November 6, 1899
56th	NE 6	William Laury Greene (Pop)	Died	William Neville (Pop)	November 7, 1899
56th	OH 16	Lorenzo Danford (R)	Died June 19, 1899	Joseph J. Gill (R)	November 7, 1899
56th	PA 9	Daniel Ermentrout (D)	Died September 7, 1899	Henry D. Green (D)	November 7, 1899
56th	UT at-large	Brigham Henry Roberts (D)	Disqualified	William H. King (D)	April 25, 1900
56th	CA 2	Marion De Vries (D)	Resigned	Samuel D. Woods (R)	November 6, 1900
56th	DE at-large	John H. Hoffecker (R)	Died June 16, 1900	Walter O. Hoffecker (R)	November 6, 1900
56th	NJ 7	William D. Daly (D)	Died July 31, 1900	Allan L. McDermott (D)	November 6, 1900
56th	PA 5	Alfred C. Harmer (R)	Died March 6, 1900	Edward de Veaux Morrell (R)	November 6, 1900
57th	ME 4	Charles A. Boutelle (R)	Died	Llewellyn Powers (R)	April 8, 1901
57th	PA 10	Marriott Brosius (R)	Died March 16, 1901	Henry B. Cassel (R)	November 5, 1901
57th	NJ 4	Joshua S. Salmon (D)	Died May 6, 1902	De Witt C. Flanagan (D)	June 18, 1902
57th	PA 17	Rufus King Polk (D)	Died March 5, 1902	Alexander Billmeyer (D)	November 4, 1902
58th	OR 1	Thomas H. Tongue (R)	Died	Binger Hermann (R)	June 1, 1903
58th	OH 16	Joseph J. Gill (R)	Resigned October 31, 1903	Capell L. Weems (R)	November 3, 1903
58th	PA 4	Robert H. Foerderer (R)	Died July 26, 1903	Reuben Moon (R)	November 3, 1903
58th	PA 3	Henry Burk (R)	Died December 5, 1903	George A. Castor (R)	February 16, 1904
58th	OH 14	William W. Skiles (R)	Died January 9, 1904	Amos R. Webber (R)	May 19, 1904
58th	OH 19	Charles W. F. Dick (R)	Resigned March 23, 1904	W. Aubrey Thomas (R)	May 19, 1904
58th	CA 3	Victor H. Metcalf (R)	Resigned	Joseph R. Knowland (R)	November 8, 1904
58th	NJ 4	William M. Lanning (R)	Resigned June 6, 1904	Ira W. Wood (R)	November 8, 1904
59th	WV 2	Alston G. Dayton (R)	Resigned	Thomas Beall Davis (D)	June 6, 1905
59th	NE 1	Elmer Burkett (R)	Resigned	Ernest M. Pollard (R)	July 18, 1905
59th	CA 1	James Gillett (R)	Resigned	William F. Englebright (R)	November 6, 1906
59th	GA 1	Rufus E. Lester (D)	Died	James W. Overstreet (D)	November 6, 1906
59th	PA 2	Robert Adams Jr. (R)	Died June 1, 1906	John E. Reyburn (R)	November 6, 1906
59th	PA 3	George A. Castor (R)	Died February 19, 1906	J. Hampton Moore (R)	November 6, 1906
59th	PA 12	George R. Patterson (R)	Died March 21, 1906	Charles N. Brumm (R)	November 6, 1906
60th	PA 2	John E. Reyburn (R)	Resigned March 31, 1907	Joel Cook (R)	November 5, 1907
60th	ME 2	Charles E. Littlefield (R)	Resigned	John P. Swasey (R)	November 3, 1908
60th	ME 4	Llewellyn Powers (R)	Died	Frank E. Guernsey (R)	November 3, 1908
60th	SD at-large	William H. Parker (R)	Died	Eben Martin (R)	November 3, 1908
61st	OH 21	Theodore E. Burton (R)	Resigned March 3, 1909	James H. Cassidy (R)	April 20, 1909
61st	GA 2	James M. Griggs (D)	Died	Seaborn Roddenbery (D)	February 6, 1910
62nd	PA 2	Joel Cook (R)	Died December 15, 1910	William S. Reyburn (R)	May 23, 1911
62nd	IA 9	Walter I. Smith (R)	Resigned March 15, 1911	William R. Green (R)	June 5, 1911
62nd	KS 2	Alexander C. Mitchell (R)	Died July 7, 1911	Joseph Taggart (D)	November 7, 1911
62nd	NE 3	James P. Latta (D)	Died September 11, 1911	Dan V. Stephens (D)	November 7, 1911
62nd	NJ 1	Henry C. Loudenslager (R)	Died August 12, 1911	William J. Browning (R)	November 7, 1911
62nd	PA 14	George W. Kipp (D)	Died July 24, 1911	William D. B. Ainey (R)	November 7, 1911
62nd	TN 10	George Gordon (D)	Died August 9, 1911	Kenneth McKellar (D)	November 7, 1911
62nd	PA 1	Henry H. Bingham (R)	Died March 22, 1912	William Scott Vare (R)	July 30, 1912
62nd	VT 1	David J. Foster (R)	Died	Frank L. Greene (R)	July 30, 1912
62nd	NJ 6	William Hughes (D)	Resigned September 12, 1912	Archibald C. Hart (D)	November 5, 1912
63rd	NJ 6	Lewis J. Martin (D)	Died May 5, 1913	Archibald C. Hart (D)	July 22, 1913
63rd	ME 3	Forrest Goodwin (R)	Died	John A. Peters (R)	September 9, 1913
63rd	WV 1	John W. Davis (D)	Resigned	Matthew M. Neely (D)	October 14, 1913
63rd	GA 2	Seaborn Roddenbery (D)	Died	Frank Park (D)	November 4, 1913
63rd	NJ 7	Robert G. Bremner (D)	Died February 5, 1914	Dow H. Drukker (R)	April 7, 1914
63rd	GA 10	Thomas W. Hardwick (D)	Resigned	Carl Vinson (D)	November 3, 1914
63rd	NJ 9	Walter I. McCoy (R)	Resigned October 3, 1914	Richard W. Parker (R)	December 1, 1914
64th	PA 24	William M. Brown (R)	Died January 31, 1915	Henry W. Temple (R)	November 2, 1915
64th	WV 2	William Gay Brown Jr. (D)	Died	George Meade Bowers (R)	May 9, 1916
64th	CA 10	William Stephens (R)	Resigned	Henry S. Benedict (R)	November 7, 1916
64th	WV 4	Hunter Holmes Moss Jr. (R)	Died	Harry C. Woodyard (R)	November 7, 1916
64th	GA 8	Samuel Joelah Tribble (D)	Died	Tinsley W. Rucker Jr. (D)	January 11, 1917
65th				Charles H. Brand (D)
64th	SC 5	David E. Finley (D)	Died	Paul G. McCorkle (D)	February 21, 1917
65th				William F. Stevenson (D)
65th	NH 1	Cyrus A. Sulloway (R)	Died	Sherman Everett Burroughs (R)	May 29, 1917
65th	ND 1	Henry Thomas Helgesen (R)	Died	John Miller Baer (R)	July 10, 1917
65th	PA 28	Orrin D. Bleakley (R)	Resigned April 3, 1917	Earl H. Beshlin (D)	November 6, 1917
65th	GA 4	William C. Adamson (D)	Resigned	William C. Wright (D)	January 16, 1918
65th	NJ 5	John H. Capstick (R)	Died March 17, 1918	William F. Birch (R)	November 5, 1918
65th	OH 14	Ellsworth Raymond Bathrick (D)	Died December 23, 1917	Martin L. Davey (D)	November 5, 1918
65th	PA 22	Edward E. Robbins (R)	Died January 25, 1919	John H. Wilson (D)	March 4, 1919
66th	AK at-large	Charles August Sulzer (D)	Died during electoral recount	George Barnes Grigsby (D)	June 5, 1919
66th	OK 5	Joseph Bryan Thompson (D)	Died September 18, 1919	John W. Harreld (R)	November 8, 1919
66th	WI 5	Victor L. Berger (S)	Unseated after disqualification	Victor L. Berger (S)[u]	December 19, 1919
66th	NJ 1	William J. Browning (R)	Died March 24, 1920	Francis F. Patterson Jr. (R)	November 2, 1920
66th	OK 8	Dick Thompson Morgan (R)	Died July 4, 1920	Charles Swindall (R)	November 2, 1920
66th	PA 3	J. Hampton Moore (R)	Resigned January 4, 1920	Harry C. Ransley (R)	November 2, 1920
67th	CA 9	Charles F. Van de Water (R)	Died	Walter F. Lineberger (R)	February 15, 1921
67th	PA at-large	Mahlon M. Garland (R)	Died November 19, 1920	Thomas S. Crago (R)	September 20, 1921
67th	ME 3	John A. Peters (R)	Resigned	John E. Nelson (R)	March 20, 1922
67th	HI at-large	Jonah Kūhiō Kalaniana'ole (R)	Died	Henry Alexander Baldwin (R)	March 25, 1922
67th	CA 6	John A. Elston (R)	Died	James H. MacLafferty (R)	November 7, 1922
67th	IL at-large	William E. Mason (R)	Died June 16, 1921	Winnifred Huck (R)	November 7, 1922
67th	NE 1	C. Frank Reavis (R)	Resigned	Roy H. Thorpe (R)	November 7, 1922
67th	NE 6	Moses Kinkaid (R)	Died	Augustin Reed Humphrey (R)	November 7, 1922
68th	CA 5	John I. Nolan (R)	Died	Mae Nolan (R)	January 23, 1923
68th	NY 19	None	Representative-elect Samuel Marx (D) died	Sol Bloom (D)	January 30, 1923
68th	CA 10	Henry Z. Osborne (R)	Died	John D. Fredericks (R)	May 1, 1923
68th	VT 2	Porter H. Dale (R)	Resigned	Ernest Willard Gibson (R)	November 6, 1923
68th	IL 2	Vacant	Rep. James R. Mann died during previous congress	Morton D. Hull (R)	April 3, 1923
68th	CA 10	Vacant	Rep. Henry Z. Osborne died during previous congress	John D. Fredericks (R)	May 1, 1923
68th	NY 16	Vacant	Rep. Bourke Cockran died during previous congress	John J. O'Connor (D)	November 6, 1923
68th	AL 2	John R. Tyson (D)	Died	J. Lister Hill (D)	August 14, 1923
68th	MI 3	John M. C. Smith (R)	Died	Arthur B. Williams (R)	June 19, 1923
68th	IA 8	Horace M. Towner (R)	Resigned April 1, 1923	Hiram K. Evans (R)	June 4, 1923
68th	NY 11	Daniel J. Riordan (D)	Died April 28, 1923	Anning S. Prall (D)	November 6, 1923
68th	IL 4	John W. Rainey (D)	Died May 4, 1923	Thomas A. Doyle (D)	November 6, 1923
68th	AR 6	Lewis E. Sawyer (D)	Died May 5, 1923	James B. Reed (D)	October 6, 1923
68th	WA 5	J. Stanley Webster (R)	Resigned May 8, 1923	Samuel B. Hill (D)	September 25, 1923
68th	NC 2	Claude Kitchin (D)	Died May 31, 1923	John H. Kerr (D)	November 6, 1923
68th	NY 32	Luther W. Mott (R)	Died July 10, 1923	Thaddeus C. Sweet (R)	November 6, 1923
68th	VT 2	Porter H. Dale (R)	Resigned August 11, 1923	Ernest Willard Gibson (R)	November 6, 1923
68th	KY 7	J. Campbell Cantrill (D)	Died September 2, 1923	Joseph W. Morris (D)	November 30, 1923
68th	NY 24	James V. Ganly (D)	Died September 7, 1923	Benjamin L. Fairchild (R)	November 6, 1923
68th	MS 3	Benjamin G. Humphreys II (D)	Died October 16, 1923	William Y. Humphreys (D)	November 27, 1923
68th	ND 2	George M. Young (R)	Resigned	Thomas Hall (R)	November 4, 1924
69th	MA 5	John Jacob Rogers (R)	Died	Edith Nourse Rogers (R)	June 30, 1925
69th	NJ 3	T. Frank Appleby (R)	Died December 15, 1924	Stewart H. Appleby (R)	November 3, 1925
69th	KY 10	John W. Langley (R)	Resigned	Andrew J. Kirk (R)	February 13, 1926
69th	CA 2	John Raker (D)	Died	Harry Englebright (R)	August 31, 1926
69th	CA 5	Lawrence Flaherty (R)	Died	Richard Welch (R)	August 31, 1926
70th	OR 3	Maurice Crumpacker (R)	Died	Franklin Korell (R)	October 18, 1927
70th	OH 2	Ambrose E. B. Stephens (R)	Died February 12, 1927	Charles Tatgenhorst Jr. (R)	November 8, 1927
70th	PA 1	James M. Hazlett (R)	Resigned October 20, 1927	James M. Beck (R)	November 8, 1927
70th	OR 2	Nicholas Sinnott (R)	Resigned	Robert Butler (R)	November 6, 1928
70th	PA 8	Thomas S. Butler (R)	Died May 26, 1928	James Wolfenden (R)	November 6, 1928
71st	AR 2	William Allan Oldfield (D)	Died November 19, 1928	Pearl Oldfield (D)	January 9, 1929
71st	PA 12	John J. Casey (D)	Died May 5, 1929	C. Murray Turpin (R)	June 4, 1929
71st	GA 5	Leslie Steele (D)	Died	Robert Ramspeck (D)	October 2, 1929
71st	AR 4	Otis Wingo (D)	Died	Effiegene Wingo (D)	November 4, 1930
71st	PA 32	Stephen G. Porter (R)	Died June 27, 1930	Edmund F. Erk (R)	November 4, 1930
71st	RI 3	Jeremiah O'Connell (D)	Resigned	Francis Condon (D)	November 4, 1930
71st	UT 2	Elmer O. Leatherwood (R)	Died	Frederick Loofbourow (R)	November 4, 1930
71st	WV 4	James Hughes (R)	Died	Robert Hogg (R)	November 4, 1930
72nd	NY 7	John Quayle (D)	Died November 27, 1930	Matthew V. O'Malley[v] (D)	February 17, 1931
72nd	GA 1	Charles Edwards (D)	Died	Homer Parker (D)	September 9, 1931
72nd	NY 7	Matthew V. O'Malley (D)	Died May 26, 1931	John J. Delaney (D)	November 3, 1931
72nd	OH 1	Nicholas Longworth (R)	Died April 9, 1931	John B. Hollister (R)	November 3, 1931
72nd	OH 20	Charles A. Mooney (D)	Died May 29, 1931	Martin L. Sweeney (D)	November 3, 1931
72nd	PA 2	George Scott Graham (R)	Died July 4, 1931	Edward L. Stokes (R)	November 3, 1931
72nd	NJ 5	Ernest R. Ackerman (R)	Died October 18, 1931	Percy Hamilton Stewart (D)	December 1, 1931
72nd	NH 1	Fletcher Hale (R)	Died	William Rogers (D)	January 5, 1932
72nd	GA 6	Samuel Rutherford (D)	Died	Carlton Mobley (D)	March 2, 1932
72nd	PA 20	J. Russell Leech (R)	Resigned January 29, 1932	Howard W. Stull (R)	April 26, 1932
72nd	TN 7	Edward E. Eslick (D)	Died June 14, 1932	Willa Eslick (D)	August 14, 1932
72nd	GA 3	Charles Crisp (D)	Resigned	Bryant Castellow (D)	November 8, 1932
72nd	PA 6	George A. Welsh (R)	Resigned May 31, 1932	Robert L. Davis (R)	November 8, 1932
72nd	PA 18	Edward M. Beers (R)	Died April 21, 1932	Joseph F. Biddle (R)	November 8, 1932
73rd	GA 10	Charles Brand (D)	Died	Paul Brown (D)	July 5, 1933
73rd	AZ at-large	Lewis Douglas (D)	Resigned	Isabella Greenway (D)	October 3, 1933
73rd	PA 9	Henry W. Watson (R)	Died August 27, 1933	Oliver W. Frey (D)	November 7, 1933
73rd	WV 3	Lynn Hornor (D)	Died	Andrew Edmiston (D)	November 28, 1933
73rd	NY 34	John D. Clarke (R)	Died November 5, 1933	Marian W. Clarke (R)	December 28, 1933
73rd	VT at-large	Ernest Gibson (R)	Resigned	Charles Plumley (R)	January 16, 1934
73rd	LA 6	Bolivar Kemp (D)	Died	Jared Sanders (D)	May 1, 1934
74th	RI 1	Francis Condon (D)	Resigned	Charles Risk (R)	August 6, 1935
74th	OH at-large	Charles V. Truax (D)	Died August 9, 1935	Daniel S. Earhart (D)	November 3, 1936
74th	OH 11	Mell G. Underwood (D)	Resigned April 10, 1936	Peter F. Hammond (D)	November 3, 1936
75th	CA 5	Henry Stubbs (D)	Died	Alfred Elliott (D)	May 4, 1937
75th	PA 18	Benjamin K. Focht (R)	Died March 27, 1937	Richard M. Simpson (R)	May 11, 1937
75th	OK 5	Robert P. Hill (D)	Died October 29, 1937	Gomer Griffith Smith (D)	December 10, 1937
75th	SC 6	Allard H. Gasque (D)	Died June 17, 1938	Elizabeth Gasque (D)	September 13, 1938
75th	OH 4	Frank Kloeb (D)	Resigned August 19, 1937	Walter Albaugh (R)	November 8, 1938
76th	GA 4	Emmett Owen (D)	Died	Albert Camp (D)	August 1, 1939
76th	SC 1	Thomas S. McMillan (D)	Died	Clara G. McMillan (D)	November 7, 1939
76th	PA 4	J. Burrwood Daly (D)	Died March 12, 1939	John E. Sheridan (D)	November 7, 1939
76th	OH 17	William A. Ashbrook (D)	Died January 1, 1940	J. Harry McGregor (R)	February 27, 1940
76th	OH 22	Chester C. Bolton (R)	Died October 29, 1939	Frances P. Bolton (R)	February 27, 1940
76th	NE 1	George Heinke (R)	Died	John Sweet (R)	April 19, 1940
76th	ME 2	Clyde Smith (R)	Died	Margaret Chase Smith (R)	June 3, 1940
76th	GA 8	Benjamin Gibbs (D)	Died	Florence Reville Gibbs (D)	October 1, 1940
77th	OK 7	Sam C. Massingale (D)	Died January 17, 1941	Victor Wickersham (D)	April 1, 1941
77th	MD 6	William D. Byron (D)	Died in a plane crash February 27, 1941	Katharine Byron (D)	May 27, 1941
77th	PA 15	Albert G. Rutherford (R)	Died August 10, 1941	Wilson D. Gillette (R)	November 4, 1941
77th	MS 2	Wall Doxey (D)	Resigned	Jamie Whitten (D)	November 4, 1941
77th	PA 12	J. Harold Flannery (D)	Resigned January 3, 1942	Thomas B. Miller (R)	May 19, 1942
77th	PA 33	Joseph A. McArdle (D)	Resigned January 5, 1942	Elmer J. Holland (D)	May 19, 1942
77th	CA 17	Lee Guyer (D)	Died	Cecil King (D)	August 25, 1942
77th	PA 11	Patrick J. Boland (D)	Died May 18, 1942	Veronica Boland (D)	November 3, 1942
78th	CA 2	Harry Englebright (R)	Died	Clair Engle (D)	August 31, 1943
78th	PA 23	James E. Van Zandt (R)	Resigned September 24, 1943	D. Emmert Brumbaugh (R)	November 2, 1943
78th	PA 2	James McGranery (D)	Resigned November 17, 1943	Joseph Pratt (R)	January 18, 1944
78th	PA 17	J. William Ditter (R)	Died in a plane crash November 21, 1943	Samuel K. McConnell Jr. (R)	January 18, 1944
78th	OK 2	John Conover Nichols (D)	Resigned July 3, 1943	William G. Stigler (D)	March 28, 1944
78th	NY 11	James O'Leary (D)	Died March 16, 1944	Ellsworth Buck (R)	June 6, 1944
78th	SC 2	Hampton P. Fulmer (D)	Died	Willa L. Fulmer (D)	November 7, 1944
79th	MT 2	James O'Connor (D)	Died January 15, 1945	Wesley D'Ewart (R)	June 5, 1945
79th	NJ 4	D. Lane Powers (R)	Resigned August 30, 1945	Frank A. Mathews Jr. (R)	November 6, 1945
79th	OR 1	James Mott (R)	Died November 12, 1945	Walter Norblad (R)	January 18, 1946
79th	GA 5	Robert Ramspeck (D)	Resigned	Helen Douglas Mankin (D)	February 12, 1946
79th	PA 33	Samuel A. Weiss (D)	Resigned January 7, 1946	Frank Buchanan (D)	May 21, 1946
79th	NC 8	William O. Burgin (D)	Died	Eliza Pratt (D)	May 25, 1946
79th	PA 10	John W. Murphy (D)	Resigned July 17, 1946	James P. Scoblick (R)	November 5, 1946
80th	AL 8	John Sparkman (D)	Resigned November 5, 1946	Robert E. Jones Jr. (D)	January 28, 1947
80th	WI 2	Robert Henry (R)	Died November 20, 1946	Glenn Davis (R)	April 22, 1947
80th	WA 3	Fred B. Norman (R)	Died April 18, 1947	Russell V. Mack (R)	June 7, 1947
80th	MD 3	Thomas D'Alesandro Jr. (D)	Resigned May 16, 1947	Edward Garmatz (D)	July 15, 1947
80th	TX 9	Joseph J. Mansfield (D)	Died July 12, 1947	Clark W. Thompson (D)	August 23, 1947
80th	TX 16	R. Ewing Thomason (D)	Resigned July 31, 1947	Kenneth M. Regan (D)	August 23, 1947
80th	MI 11	Fred Bradley (R)	Died May 24, 1947	Charles E. Potter (R)	August 26, 1947
80th	PA 8	Charles L. Gerlach (R)	Died May 5, 1947	Franklin H. Lichtenwalter (R)	September 9, 1947
80th	IN 10	Raymond S. Springer (R)	Died August 28, 1947	Ralph Harvey (R)	November 4, 1947
80th	NY 14	Leo F. Rayfiel (D)	Resigned September 13, 1947	Abraham J. Multer (D)	November 4, 1947
80th	OH 4	Robert Jones (R)	Resigned	William McCulloch (R)	November 4, 1947
80th	MA 9	Charles L. Gifford (R)	Died August 23, 1947	Donald W. Nicholson (R)	November 18, 1947
80th	NY 24	Benjamin J. Rabin (D)	Resigned December 31, 1947	Leo Isacson (AL)	February 17, 1948
80th	VA 4	Patrick Drewry (D)	Died December 21, 1947	Watkins Abbitt (D)	February 17, 1948
80th	KY 2	Earle Clements (D)	Resigned January 6, 1948	John Whitaker (D)	April 17, 1948
80th	KY 9	John Robsion (R)	Died February 17, 1948	William Lewis (R)	April 24, 1948
80th	MO 10	Orville Zimmerman (D)	Died April 7, 1948	Paul C. Jones (D)	November 2, 1948
80th	VA 6	J. Lindsay Almond (D)	Resigned April 17, 1948	Clarence G. Burton (D)	November 2, 1948
80th	TX 15	Milton H. West (D)	Died October 28, 1948	Lloyd Bentsen (D)	December 4, 1948
81st	NY 7	John J. Delaney (D)	Died November 18, 1948	Louis B. Heller (D)	February 15, 1949[6]
81st	NY 20	Sol Bloom (D)	Died March 7, 1949	Franklin D. Roosevelt Jr. (Lib)	May 17, 1949[7]
81st	PA 26	Robert L. Coffey (D)	Died April 20, 1949	John P. Saylor (R)	September 13, 1949
81st	CA 5	Richard Welch (R)	Died	Jack Shelley (D)	November 8, 1949
81st	NY 10	Andrew Lawrence Somers (D)	Died	Edna F. Kelly (D)	November 8, 1949
81st	NJ 7	J. Parnell Thomas (R)	Resigned January 2, 1950	William B. Widnall (R)	February 6, 1950
81st	TX 18	Eugene Worley (D)	Resigned April 3, 1950	Ben H. Guill (R)	May 6, 1950
81st	KY 6	Thomas R. Underwood (D)	Resigned March 17, 1951	John C. Watts (D)	April 4, 1951
82nd	WV 5	John Kee (D)	Died	Elizabeth Kee (D)	July 17, 1951
82nd	PA 33	Frank Buchanan (D)	Died April 27, 1951	Vera Buchanan (D)	July 24, 1951
82nd	ME 3	Frank Fellows (R)	Died	Clifford McIntire (R)	October 22, 1951
82nd	NJ 9	Harry L. Towe (R)	Resigned September 7, 1951	Frank C. Osmers Jr. (R)	November 6, 1951
82nd	OH 3	Edward G. Breen (D)	Resigned October 1, 1951	Paul F. Schenck (R)	November 6, 1951
82nd	PA 8	Albert C. Vaughn (R)	Died September 1, 1951	Karl C. King (R)	November 6, 1951
82nd	PA 14	Wilson D. Gillette (R)	Died August 7, 1951	Joseph L. Carrigg (R)	November 6, 1951
82nd	NE 3	Karl Stefan (R)	Died	R. D. Harrison (R)	December 4, 1951
83rd	GA 2	E. Eugene Cox (D)	Died	J. L. Pilcher (D)	February 4, 1953
83rd	NJ 6	Clifford P. Case (R)	Resigned August 16, 1953	Harrison A. Williams (D)	November 3, 1953
83rd	CA 24	Norris Poulson (R)	Resigned	Glenard P. Lipscomb (R)	November 10, 1953
83rd	HI at-large	Joseph R. Farrington (R)	Died	Mary Elizabeth Pruett Farrington (R)	July 31, 1954
83rd	GA 4	A. Sidney Camp (D)	Died	John Flynt (D)	November 2, 1954
84th	FL 6	Dwight L. Rogers (D)	Died December 1, 1954	Paul Rogers (D)	January 11, 1955
84th	MI 15	John Dingell Sr. (D)	Died	John Dingell (D)	December 13, 1955
84th	PA 30	Vera Buchanan (D)	Died November 26, 1955	Elmer J. Holland (D)	January 24, 1956
84th	PA 2	William T. Granahan (D)	Died May 25, 1956	Kathryn E. Granahan (D)	November 6, 1956
85th	NM at-large	Antonio M. Fernández (D)	Died	Joseph Montoya (D)	April 9, 1957
85th	NJ 2	T. Millet Hand (R)	Died December 26, 1956	Milton W. Glenn (R)	November 5, 1957
85th	PA 13	Samuel K. McConnell Jr. (R)	Resigned September 1, 1957	John A. Lafore Jr. (R)	November 5, 1957
85th	GA 7	Henderson L. Lanham (D)	Died	Harlan Mitchell (D)	January 8, 1958
85th	PA 21	Augustine Kelley (D)	Died November 20, 1957	John H. Dent (D)	January 21, 1958
85th	PA 4	Earl Chudoff (D)	Resigned January 5, 1958	Robert Nix (D)	May 20, 1958
86th	MO 4	George H. Christopher (D)	Died January 23, 1959	William J. Randall (D)	March 3, 1959
86th	NY 43	Daniel A. Reed (R)	Died February 19, 1959	Charles Goodell (R)	May 26, 1959
86th	IA 4	Steven V. Carter (D)	Died November 4, 1959	John Henry Kyl (R)	December 15, 1959
86th	NY 23	Isidore Dollinger (D)	Resigned December 31, 1959	Jacob H. Gilbert (D)	March 8, 1960
86th	PA 17	Alvin Bush (R)	Died November 5, 1959	Herman T. Schneebeli (R)	April 26, 1960
86th	NC 12	David McKee Hall (D)	Died January 29, 1960	Roy A. Taylor (D)	June 25, 1960
86th	PA 18	Richard M. Simpson (R)	Died January 7, 1960	Douglas Elliott (R)	April 26, 1960
86th	OH 6	James G. Polk (D)	Died April 28, 1959	Ward Miller (R)	November 8, 1960
86th	PA 18	Douglas Elliott (R)	Died June 19, 1960	J. Irving Whalley (R)	November 8, 1960
86th	WA 3	Russell V. Mack (R)	Died March 28, 1960	Julia Butler Hansen (D)	November 8, 1960
87th	AR 6	William F. Norrell (D)	Died February 15, 1961	Catherine Dorris Norrell (D)	April 19, 1961
87th	AZ 2	Stewart Udall (D)	Resigned January 18, 1961	Mo Udall (D)	May 2, 1961
87th	PA 16	Walter M. Mumma (R)	Died February 25, 1961	John C. Kunkel (R)	May 16, 1961
87th	TN 1	B. Carroll Reece (R)	Died March 19, 1961	Louise Goff Reece (R)	May 16, 1961
87th	TX 20	Paul J. Kilday (D)	Resigned September 24, 1961	Henry B. González (D)	November 4, 1961
87th	MI 1	Thaddeus M. Machrowicz (D)	Resigned September 18, 1961	Lucien Nedzi (D)	November 7, 1961
87th	LA 4	Overton Brooks (D)	Died September 16, 1961	Joe Waggonner (D)	December 19, 1961
87th	TX 13	Frank N. Ikard (D)	Resigned December 15, 1961	Graham B. Purcell Jr. (D)	January 27, 1962
87th	TX 4	Sam Rayburn (D)	Died November 16, 1961	Ray Roberts (D)	January 30, 1962
87th	MI 14	Louis C. Rabaut (D)	Died November 12, 1961	Harold M. Ryan (D)	February 13, 1962
87th	NY 6	Lester Holtzman (D)	Resigned December 31, 1961	Benjamin Rosenthal (D)	February 20, 1962
87th	SC 2	John J. Riley (D)	Died January 1, 1962	Corinne Boyd Riley (D)	April 10, 1962
88th	CA 1	None	Clem Miller (D) died October 7, 1962, during the previous Congress	Don Clausen (R)	January 22, 1963
88th	CA 23	Clyde Doyle (D)	Died March 14, 1963	Del M. Clawson (R)	June 11, 1963
88th	PA 15	Francis E. Walter (D)	Died May 31, 1963	Fred B. Rooney (D)	July 30, 1963
88th	ND 1	Hjalmar Carl Nygaard (R)	Died July 18, 1963	Mark Andrews (R)	October 22, 1963
88th	PA 23	Leon H. Gavin (R)	Died September 15, 1963	Albert W. Johnson (R)	November 5, 1963
88th	TX 10	Homer Thornberry (D)	Resigned December 20, 1963	J. J. Pickle (D)	December 21, 1963
88th	CA 5	Jack Shelley (D)	Resigned January 7, 1964	Phillip Burton (D)	February 18, 1964
88th	TN 2	Howard Baker Sr. (R)	Died January 7, 1964	Irene Baker (R)	March 10, 1964
88th	PA 5	William J. Green Jr. (D)	Died December 21, 1963	William J. Green III (D)	April 28, 1964
88th	SC 5	Robert W. Hemphill (D)	Resigned May 1, 1964	Thomas S. Gettys (D)	November 3, 1964
88th	MO 9	Clarence Cannon (D)	Died May 12, 1964	William L. Hungate (D)	November 3, 1964
88th	OR 1	A. Walter Norblad (R)	Died September 20, 1964	Wendell Wyatt (R)	November 3, 1964
89th	SC 2	Albert Watson (D)	Resigned	Albert Watson (R)	June 15, 1965
89th	LA 7	T. Ashton Thompson (D)	Died July 1, 1965	Edwin Edwards (D)	October 2, 1965[8]
89th	OH 7	Clarence J. Brown (R)	Died August 23, 1965	Bud Brown (R)	November 2, 1965
89th	CA 26	James Roosevelt (D)	Resigned	Thomas M. Rees (D)	December 15, 1965
89th	NC 1	Herbert C. Bonner (D)	Died November 7, 1965	Walter B. Jones Sr. (D)	February 5, 1966
89th	NY 17	John Lindsay (D)	Resigned	Theodore R. Kupferman (R)	February 8, 1966
89th	TX 8	Albert Thomas (D)	Died February 15, 1966	Lera Millard Thomas (D)	March 26, 1966
89th	CA 14	John F. Baldwin Jr. (R)	Died March 9, 1966	Jerome Waldie (D)	June 7, 1966
89th	AR 4	Oren Harris (D)	Resigned	David Pryor (D)	November 8, 1966
89th	MI 9	Robert P. Griffin (R)	Resigned	Guy Vander Jagt (R)	November 8, 1966
90th	RI 2	John E. Fogarty (D)	Died January 10, 1967	Robert Tiernan (D)	March 28, 1967
90th	CA 11	J. Arthur Younger (R)	Died June 20, 1967	Pete McCloskey (R)	December 12, 1967
90th	NY 13	Abraham J. Multer (D)	Resigned	Bertram L. Podell (D)	February 20, 1968
90th	MS 3	John Bell Williams (D)	Resigned January 16, 1968	Charles H. Griffin (D)	March 12, 1968
90th	TX 3	Joe R. Pool (D)	Died July 14, 1968	James M. Collins (R)	August 24, 1968
90th	PA 20	Elmer J. Holland (D)	Died August 9, 1968	Joseph M. Gaydos (D)	November 5, 1968
91st	TN 8	Fats Everett (D)	Died January 26, 1969	Ed Jones (D)	March 25, 1969
91st	WI 7	Melvin Laird (R)	Resigned	Dave Obey (D)	April 1, 1969
91st	CA 27	Ed Reinecke (R)	Resigned	Barry Goldwater Jr. (R)	April 29, 1969
91st	MT 2	James F. Battin (R)	Resigned	John Melcher (D)	June 24, 1969
91st	MA 6	William H. Bates (R)	Died	Michael J. Harrington (D)	September 30, 1969
91st	NJ 8	Charles S. Joelson (D)	Resigned	Robert A. Roe (D)	November 4, 1969
91st	IL 13	Donald Rumsfeld (R)	Resigned	Phil Crane (R)	November 25, 1969
91st	CA 35	James B. Utt (R)	Died	John G. Schmitz (R)	June 30, 1970
91st	CA 24	Glen Lipscomb (R)	Died February 1, 1970	John H. Rousselot (R)	June 30, 1970
91st	CT 2	William St. Onge (D)	Died May 1, 1970	Robert H. Steele (R)	November 3, 1970
91st	NJ 6	William T. Cahill (R)	Resigned January 19, 1970	Edwin B. Forsythe (R)	November 3, 1970
91st	OH 19	Michael J. Kirwan (D)	Died July 27, 1970	Charles J. Carney (D)	November 3, 1970
91st	PA 9	Robert Watkins (R)	Died August 7, 1970	John H. Ware III (R)	November 3, 1970
91st	IL 6	Daniel J. Ronan (D)	Died August 13, 1969	George W. Collins (D)	December 3, 1970
92nd	SC 1	None	L. Mendel Rivers (D) died December 28, 1970, before the end of the previous Congress	Mendel Jackson Davis (D)	April 27, 1971
92nd	MD 1	Rogers Morton (R)	Resigned	William O. Mills (R)	May 25, 1971
92nd	PA 18	Robert J. Corbett (R)	Died April 25, 1971	John Heinz (R)	November 2, 1971
92nd	KY 6	John C. Watts (D)	Died September 24, 1971	William P. Curlin Jr. (D)	December 4, 1971
92nd	VT at-large	Robert Stafford (R)	Resigned	Richard W. Mallary (R)	January 7, 1972
92nd	AL 3	George W. Andrews (D)	Died December 25, 1971	Elizabeth B. Andrews (D)	April 4, 1972
92nd	IL 15	Charlotte Thompson Reid (R)	Resigned	Cliffard D. Carlson (R)	April 4, 1972
92nd	PA 27	James G. Fulton (R)	Died October 6, 1971	William Sheldrick Conover (R)	April 25, 1972
92nd	LA 7	Edwin Edwards (D)	Resigned	John Breaux (D)	September 30, 1972
92nd	VA 6	Richard H. Poff (R)	Resigned	Caldwell Butler (R)	November 7, 1972
93rd	AK at-large	None	Nick Begich Sr. (D) died December 29, 1972, before the end of the previous Congress	Don Young (R)	March 6, 1973
93rd	LA 2	None	Hale Boggs (D) died December 29, 1972, before the end of the previous Congress	Lindy Boggs (D)	March 20, 1973
93rd	IL 7	None	George W. Collins (D) died December 8, 1972, during the previous Congress	Cardiss Collins (D)	June 5, 1973
93rd	MD 1	William Oswald Mills (R)	Died	Bob Bauman (R)	August 21, 1973
93rd	PA 12	John P. Saylor (R)	Died October 28, 1973	John Murtha (D)	February 25, 1974
93rd	MI 5	Gerald Ford (R)	Resigned	Richard VanderVeen (D)	February 18, 1974
93rd	OH 1	Bill Keating (R)	Resigned	Tom Luken (D)	March 5, 1974
93rd	MI 8	R. James Harvey (R)	Resigned	J. Bob Traxler (D)	April 16, 1974
93rd	CA 6	William S. Mailliard (R)	Resigned	John Burton (D)	June 4, 1974
93rd	CA 13	Charles M. Teague (R)	Died	Robert Lagomarsino (R)	June 4, 1974
94th	LA 6	None	Results of the preceding election were annulled because of claimed tabulation irregularities	W. Henson Moore (R)	January 7, 1975
94th	CA 37	Jerry Pettis (R)	Died	Shirley Pettis (R)	April 29, 1975
94th	IL 5	John Kluczynski (D)	Died	John Fary (D)	July 8, 1975
94th	TN 5	Richard Fulton (D)	Resigned	Clifford Allen (D)	November 25, 1975
94th	NY 39	James F. Hastings (R)	Resigned	Stan Lundine (D)	March 2, 1976
94th	TX 22	Robert R. Casey (D)	Resigned	Ron Paul (R)	April 3, 1976
94th	TX 1	Wright Patman (D)	Died	Sam B. Hall Jr. (D)	June 19, 1976
94th	MA 7	Torbert MacDonald (D)	Died	Ed Markey (D)	November 2, 1976
94th	MO 6	Jerry Litton (D)	Died	Tom Coleman (R)	November 2, 1976
94th	PA 1	William A. Barrett (D)	Died April 12, 1976	Michael Myers (D)	November 2, 1976
95th	MN 7	Bob Bergland (D)	Resigned	Arlan Stangeland (R)	February 22, 1977
95th	GA 5	Andrew Young (D)	Resigned	Wyche Fowler (D)	April 6, 1977
95th	WA 7	Brock Adams (D)	Resigned	John E. Cunningham (R)	May 17, 1977
95th	LA 1	Rick Tonry (D)	Resigned	Bob Livingston (R)	August 27, 1977
95th	NY 18	Ed Koch (D)	Resigned	Bill Green (R)	February 14, 1978
95th	NY 21	Herman Badillo (D)	Resigned	Robert Garcia (D)	February 14, 1978
96th	CA 11	Leo Ryan (D)	Died	William Royer (R)	April 3, 1979
96th	WI 6	William A. Steiger (R)	Died	Tom Petri (R)	April 3, 1979
96th	IL 10	Abner Mikva (D)	Resigned	John Porter (R)	January 22, 1980
96th	WV 3	John M. Slack Jr. (D)	Died	John G. Hutchinson (D)	April 9, 1980
96th	PA 11	Dan Flood (D)	Resigned	Raphael Musto (D)	April 9, 1980
96th	LA 3	Dave Treen (R)	Resigned	Billy Tauzin (D)	May 17, 1980
96th	MI 13	Charles Diggs (D)	Resigned	George Crockett Jr. (D)	November 4, 1980
97th	MI 4	David Stockman (R)	Resigned	Mark D. Siljander (R)	April 21, 1981
97th	MD 5	Gladys Spellman (D)	Fell into a permanent coma, resulting in the seat being declared vacant	Steny Hoyer (D)	May 19, 1981
97th	OH 4	Tennyson Guyer (R)	Died	Mike Oxley (R)	June 25, 1981
97th	MS 4	Jon Hinson (R)	Resigned	Wayne Dowdy (D)	July 7, 1981
97th	PA 3	Ray Lederer (D)	Resigned April 29, 1981	Joseph F. Smith (D)	July 21, 1981
97th	CT 1	William Cotter (D)	Died	Barbara B. Kennelly (D)	January 12, 1982
97th	OH 17	John M. Ashbrook (R)	Died	Jean Spencer Ashbrook (R)	June 29, 1982
97th	CA 30	George E. Danielson (D)	Resigned	Matthew G. Martinez (D)	July 13, 1982
97th	IN 1	Adam Benjamin Jr. (D)	Died	Katie Hall (D)	November 2, 1982
98th	TX 6	Phil Gramm (D)	Resigned	Phil Gramm (R)	February 12, 1983
98th	NY 7	Benjamin Rosenthal (D)	Died	Gary Ackerman (D)	March 1, 1983
98th	CO 6	None[w]	Representative-elect Jack Swigert (R) died December 27, 1982	Dan Schaefer (R)	March 29, 1983
98th	CA 5	Phillip Burton (D)	Died	Sala Burton (D)	June 21, 1983
98th	IL 1	Harold Washington (D)	Resigned	Charles Hayes (D)	August 23, 1983
98th	GA 7	Larry McDonald (D)	Died September 1, 1983	Buddy Darden (D)	November 8, 1983
98th	WI 4	Clement Zablocki (D)	Died	Jerry Kleczka (D)	April 3, 1984
98th	KY 7	Carl Perkins (D)	Died	Chris Perkins (D)	November 6, 1984
98th	NJ 13	Edwin Forsythe (R)	Died March 29, 1984	Jim Saxton (R)	November 6, 1984
99th	LA 8	Gillis Long (D)	Died	Catherine Small Long (D)	March 30, 1985
99th	TX 1	Sam Hall (D)	Resigned	Jim Chapman (D)	September 4, 1985
99th	NY 6	Joe Addabbo (D)	Died	Alton Waldon (D)	July 10, 1986
99th	HI 1	Cec Heftel (D)	Resigned	Neil Abercrombie (D)	September 20, 1986
99th	NC 10	Jim Broyhill (R)	Resigned	Cass Ballenger (R)	November 4, 1986
100th	CA 5	Sala Burton (D)	Died	Nancy Pelosi (D)	June 2, 1987
100th	CT 4	Stewart McKinney (R)	Died	Chris Shays (R)	August 18, 1987
100th	TN 5	Bill Boner (D)	Resigned	Bob Clement (D)	January 19, 1988
100th	LA 4	Buddy Roemer (D)	Resigned	Jim McCrery (R)	April 16, 1988
100th	VA 5	Dan Daniel (D)	Died	Lewis Payne (D)	June 14, 1988
100th	IL 21	Melvin Price (D)	Died	Jerry Costello (D)	August 9, 1988
100th	NJ 3	James Howard (D)	Died March 25, 1988	Frank Pallone (D)	November 8, 1988
100th	TN 2	John Duncan (R)	Died	Jimmy Duncan (R)	November 8, 1988
101st	IN 4	Dan Coats (R)	Resigned	Jill Long (D)	March 28, 1989
101st	AL 3	Bill Nichols (D)	Died	Glen Browder (D)	April 4, 1989
101st	WY at-large	Dick Cheney (R)	Resigned	Craig Thomas (R)	April 26, 1989
101st	FL 18	Claude Pepper (D)	Died	Ileana Ros-Lehtinen (R)	August 29, 1989
101st	CA 15	Tony Coelho (D)	Resigned	Gary Condit (D)	September 12, 1989
101st	TX 12	Jim Wright (D)	Resigned	Pete Geren (D)	September 12, 1989
101st	MS 5	Larkin Smith (R)	Died	Gene Taylor (D)	October 17, 1989
101st	TX 18	Mickey Leland (D)	Died	Craig Washington (D)	December 9, 1989
101st	NY 14	Guy Molinari (R)	Resigned	Susan Molinari (R)	March 20, 1990
101st	NY 18	Robert Garcia (D)	Resigned	José E. Serrano (D)	March 20, 1990
101st	HI 2	Daniel Akaka (D)	Resigned	Patsy Mink (D)	September 22, 1990
101st	NJ 1	Jim Florio (D)	Resigned	Rob Andrews (D)	November 6, 1990
102nd	TX 3	Steve Bartlett (R)	Resigned	Sam Johnson (R)	May 18, 1991
102nd	MA 1	Silvio Conte (R)	Died	John Olver (D)	June 4, 1991
102nd	IL 15	Ed Madigan (R)	Resigned	Tom Ewing (R)	July 2, 1991
102nd	AZ 2	Mo Udall (D)	Resigned	Ed Pastor (D)	October 3, 1991
102nd	PA 2	Bill Gray (D)	Resigned	Lucien Blackwell (D)	November 5, 1991
102nd	VA 7	D. French Slaughter Jr. (R)	Resigned	George Allen (R)	November 5, 1991
102nd	NY 17	Ted Weiss (D)	Died	Jerry Nadler (D)	November 3, 1992
102nd	NC 1	Walter B. Jones Sr. (D)	Died	Eva Clayton (D)	November 3, 1992
103rd	MS 2	Mike Espy (D)	Resigned	Bennie Thompson (D)	April 13, 1993
103rd	WI 1	Les Aspin (D)	Resigned	Peter Barca (D)	May 4, 1993
103rd	OH 2	Bill Gradison (R)	Resigned	Rob Portman (R)	May 4, 1993
103rd	CA 17	Leon Panetta (D)	Resigned	Sam Farr (D)	June 8, 1993
103rd	MI 3	Paul B. Henry (R)	Died July 31, 1993	Vern Ehlers (R)	December 7, 1993
103rd	OK 6	Glenn English (D)	Resigned	Frank Lucas (R)	May 10, 1994
103rd	KY 2	William Natcher (D)	Died March 29, 1994	Ron Lewis (R)	May 24, 1994
103rd	OK 1	Jim Inhofe (R)	Resigned	Steve Largent (R)	November 8, 1994
104th	CA 15	Norman Mineta (D)	Resigned	Tom Campbell (R)	December 12, 1995
104th	IL 2	Mel Reynolds (D)	Resigned	Jesse Jackson Jr. (D)	December 12, 1995
104th	CA 37	Walter R. Tucker III (D)	Resigned	Juanita Millender-McDonald (D)	March 26, 1996
104th	MD 7	Kweisi Mfume (D)	Resigned	Elijah Cummings (D)	April 16, 1996
104th	OR 3	Ron Wyden (D)	Resigned	Earl Blumenauer (D)	May 21, 1996
104th	KS 2	Sam Brownback (R)	Resigned	Jim Ryun (R)	November 5, 1996
104th	MO 8	Bill Emerson (R)	Died June 22, 1996	Jo Ann Emerson (R)	November 5, 1996
105th	TX 28	Frank Tejeda (D)	Died	Ciro Rodriguez (D)	April 12, 1997
105th	NM 3	Bill Richardson (D)	Resigned	Bill Redmond (R)	May 13, 1997
105th	NY 13	Susan Molinari (R)	Resigned	Vito Fossella (R)	November 4, 1997
105th	NY 6	Floyd Flake (D)	Resigned	Gregory Meeks (D)	February 3, 1998
105th	CA 22	Walter Capps (D)	Died October 28, 1997	Lois Capps (D)	March 10, 1998
105th	CA 9	Ron Dellums (D)	Resigned	Barbara Lee (D)	April 7, 1998
105th	CA 44	Sonny Bono (R)	Died January 5, 1998	Mary Bono (R)	April 7, 1998
105th	PA 1	Tom Foglietta (D)	Resigned	Bob Brady (D)	May 19, 1998
105th	NM 1	Steven Schiff (R)	Died	Heather Wilson (R)	June 23, 1998
106th	GA 6	None	Newt Gingrich (R) resigned January 3, 1999, at the end of the previous Congress	Johnny Isakson (R)	February 23, 1999
106th	LA 1	Bob Livingston (R)	Resigned	David Vitter (R)	May 29, 1999
106th	CA 42	George Brown Jr. (D)	Died	Joe Baca (D)	November 16, 1999
107th	PA 9	Bud Shuster (R)	Resigned	Bill Shuster (R)	May 15, 2001
107th	CA 32	None	Julian Dixon (D) died December 8, 2000, during the previous Congress	Diane Watson (D)	June 5, 2001
107th	VA 4	Norman Sisisky (D)	Died March 29, 2001	Randy Forbes (R)	June 19, 2001
107th	MA 9	Joe Moakley (D)	Died May 28, 2001	Stephen Lynch (D)	October 16, 2001
107th	FL 1	Joe Scarborough (R)	Resigned September 5, 2001	Jeff Miller (R)	October 16, 2001
107th	AR 3	Asa Hutchinson (R)	Resigned August 6, 2001	John Boozman (R)	November 20, 2001
107th	SC 2	Floyd Spence (R)	Died August 16, 2001	Joe Wilson (R)	December 18, 2001
107th	OK 1	Steve Largent (R)	Resigned	John Sullivan (R)	January 8, 2002
107th	HI 2	Patsy Mink (D)	Died September 28, 2002	Ed Case (D)	November 30, 2002
108th				Ed Case (D)	January 4, 2003
108th	TX 19	Larry Combest (R)	Resigned	Randy Neugebauer (R)	June 3, 2003
108th	KY 6	Ernie Fletcher (R)	Resigned December 8, 2003	Ben Chandler (D)	February 17, 2004
108th	SD at-large	Bill Janklow (R)	Resigned	Stephanie Herseth Sandlin (D)	June 1, 2004
108th	NC 1	Frank Ballance (D)	Resigned	G. K. Butterfield (D)	July 20, 2004
109th	CA 5	None	Bob Matsui (D) died January 1, 2005, before the end of previous Congress	Doris Matsui (D)	March 8, 2005
109th	OH 2	Rob Portman (R)	Resigned	Jean Schmidt (R)	August 2, 2005
109th	CA 48	Christopher Cox (R)	Resigned	John Campbell (R)	December 6, 2005
109th	CA 50	Duke Cunningham (R)	Resigned	Brian Bilbray (R)	June 6, 2006
109th	NJ 13	Bob Menendez (D)	Resigned	Albio Sires (D)	November 7, 2006
109th	TX 22	Tom DeLay (R)	Resigned	Shelley Sekula-Gibbs (R)	November 7, 2006
110th	GA 10	Charlie Norwood (R)	Died February 13, 2007	Paul Broun (R)	July 19, 2007
110th	CA 37	Juanita Millender-McDonald (D)	Died April 22, 2007	Laura Richardson (D)	August 21, 2007
110th	MA 5	Marty Meehan (D)	Resigned July 1, 2007	Niki Tsongas (D)	October 16, 2007
110th	OH 5	Paul Gillmor (R)	Died September 5, 2007	Bob Latta (R)	December 11, 2007
110th	VA 1	Jo Ann Davis (R)	Died October 6, 2007	Rob Wittman (R)	December 11, 2007
110th	IL 14	Dennis Hastert (R)	Resigned	Bill Foster (D)	March 8, 2008
110th	IN 7	Julia Carson (D)	Died December 15, 2007	André Carson (D)	March 11, 2008
110th	CA 12	Tom Lantos (D)	Died February 11, 2008	Jackie Speier (D)	April 8, 2008
110th	LA 1	Bobby Jindal (R)	Resigned	Steve Scalise (R)	May 3, 2008
110th	LA 6	Richard Baker (R)	Resigned	Don Cazayoux (D)	May 3, 2008
110th	MS 1	Roger Wicker (R)	Resigned December 31, 2007	Travis Childers (D)	May 13, 2008
110th	MD 4	Albert Wynn (D)	Resigned	Donna Edwards (D)	June 17, 2008
110th	OH 11	Stephanie Tubbs Jones (D)	Died August 20, 2008	Marcia Fudge (D)	November 18, 2008
111th	NY 20	Kirsten Gillibrand (D)	Resigned	Scott Murphy (D)	March 31, 2009
111th.[x]	IL 5	Rahm Emanuel (D)	Resigned	Mike Quigley (D)	April 7, 2009
111th	CA 32	Hilda Solis (D)	Resigned	Judy Chu (D)	July 14, 2009
111th	CA 10	Ellen Tauscher (D)	Resigned	John Garamendi (D)	November 3, 2009
111th	NY 23	John M. McHugh (R)	Resigned	Bill Owens (D)	November 3, 2009
111th	FL 19	Robert Wexler (D)	Resigned	Ted Deutch (D)	April 13, 2010
111th	PA 12	John Murtha (D)	Died February 8, 2010	Mark Critz (D)	May 18, 2010
111th	HI 1	Neil Abercrombie (D)	Resigned	Charles Djou (R)	May 22, 2010
111th	GA 9	Nathan Deal (R)	Resigned	Tom Graves (R)	June 8, 2010[y]
111th	IN 3	Mark Souder (R)	Resigned	Marlin Stutzman (R)	November 2, 2010
111th	NY 29	Eric Massa (D)	Resigned	Tom Reed (R)	November 2, 2010
112th	NY 26	Chris Lee (R)	Resigned	Kathy Hochul (D)	May 24, 2011
112th	CA 36	Jane Harman (D)	Resigned	Janice Hahn (D)	July 12, 2011
112th	NV 2	Dean Heller (R)	Resigned	Mark Amodei (R)	September 13, 2011
112th	NY 9	Anthony Weiner (D)	Resigned	Bob Turner (R)	September 13, 2011
112th	OR 1	David Wu (D)	Resigned	Suzanne Bonamici (D)	January 31, 2012
112th	AZ 8	Gabby Giffords (D)	Resigned	Ron Barber (D)	June 12, 2012
112th	KY 4	Geoff Davis (R)	Resigned	Thomas Massie (R)	November 6, 2012
112th	MI 11	Thad McCotter (R)	Resigned	David Curson (D)	November 6, 2012
112th	NJ 10	Donald M. Payne (D)	Died March 6, 2012	Donald Payne Jr. (D)	November 6, 2012
112th	WA 1	Jay Inslee (D)	Resigned	Suzan DelBene (D)	November 6, 2012
113th	IL 2	None	Jesse Jackson Jr. (D) resigned November 21, 2012, during the previous Congress[9]	Robin Kelly (D)	April 9, 2013
113th	SC 1	None	Tim Scott (R) resigned January 2, 2013, before the end of the previous Congress	Mark Sanford (R)	May 7, 2013
113th	MO 8	Jo Ann Emerson (R)	Resigned January 22, 2013	Jason Smith (R)	June 4, 2013
113th	LA 5	Rodney Alexander (R)	Resigned September 26, 2013	Vance McAllister (R)	November 16, 2013
113th	MA 5	Ed Markey (D)	Resigned July 15, 2013	Katherine Clark (D)	December 10, 2013
113th	AL 1	Jo Bonner (R)	Resigned August 2, 2013	Bradley Byrne (R)	December 17, 2013
113th	FL 13	Bill Young (R)	Died October 18, 2013	David Jolly (R)	March 11, 2014
113th	FL 19	Trey Radel (R)	Resigned January 27, 2014	Curt Clawson (R)	June 24, 2014
113th	NC 12	Mel Watt (D)	Resigned January 6, 2014	Alma Adams (D)	November 4, 2014
113th	NJ 1	Rob Andrews (D)	Resigned February 18, 2014	Donald Norcross (D)	November 4, 2014
113th	VA 7	Eric Cantor (R)	Resigned August 1, 2014	Dave Brat (R)	November 4, 2014
114th	NY 11	Michael Grimm (R)	Resigned January 5, 2015	Dan Donovan (R)	May 5, 2015
114th	MS 1	Alan Nunnelee (R)	Died February 6, 2015	Trent Kelly (R)	May 12, 2015
114th	IL 18	Aaron Schock (R)	Resigned March 31, 2015	Darin LaHood (R)	September 10, 2015
114th	OH 8	John Boehner (R)	Resigned October 29, 2015	Warren Davidson (R)	June 7, 2016
114th	PA 2	Chaka Fattah (D)	Resigned June 23, 2016	Dwight Evans (D)	November 8, 2016
114th	HI 1	Mark Takai (D)	Died July 20, 2016	Colleen Hanabusa (D)	November 8, 2016
114th	KY 1	Ed Whitfield (R)	Resigned September 6, 2016	James Comer (R)	November 8, 2016
115th	KS 4	Mike Pompeo (R)	Resigned January 23, 2017	Ron Estes (R)	April 11, 2017
115th	MT at-large	Ryan Zinke (R)	Resigned March 1, 2017	Greg Gianforte (R)	May 25, 2017
115th	CA 34	Xavier Becerra (D)	Resigned January 24, 2017	Jimmy Gomez (D)	June 6, 2017
115th	GA 6	Tom Price (R)	Resigned February 10, 2017	Karen Handel (R)	June 20, 2017
115th	SC 5	Mick Mulvaney (R)	Resigned February 16, 2017	Ralph Norman (R)	June 20, 2017
115th	UT 3	Jason Chaffetz (R)	Resigned June 30, 2017	John Curtis (R)	November 7, 2017
115th	PA 18	Tim Murphy (R)	Resigned October 21, 2017[10]	Conor Lamb (D)	March 13, 2018
115th	AZ 8	Trent Franks (R)	Resigned December 8, 2017	Debbie Lesko (R)	April 24, 2018
115th	TX 27	Blake Farenthold (R)	Resigned April 6, 2018	Michael Cloud (R)	June 30, 2018
115th	OH 12	Pat Tiberi (R)	Resigned January 15, 2018	Troy Balderson (R)	August 7, 2018
115th	MI 13	John Conyers (D)	Resigned December 5, 2017	Brenda Jones (D)	November 6, 2018
115th	NY 25	Louise Slaughter (D)	Died March 16, 2018	Joseph Morelle (D)	November 6, 2018
115th	PA 7	Pat Meehan (R)	Resigned April 27, 2018	Mary Gay Scanlon (D)	November 6, 2018
115th	PA 15	Charlie Dent (R)	Resigned May 12, 2018	Susan Wild (D)	November 6, 2018
116th	PA 12	Tom Marino (R)	Resigned January 23, 2019	Fred Keller (R)	May 21, 2019
116th	NC 3	Walter B. Jones Jr. (R)	Died February 10, 2019	Greg Murphy (R)	September 10, 2019
116th	NC 9	None	Results of 2018 election were annulled; seat was declared vacant[11][12]	Dan Bishop (R)	September 10, 2019
116th	MD 7	Elijah Cummings (D)	Died October 17, 2019	Kweisi Mfume (D)	April 28, 2020
116th	CA 25	Katie Hill (D)	Resigned November 3, 2019	Mike Garcia (R)	May 12, 2020
116th	WI 7	Sean Duffy (R)	Resigned September 23, 2019	Tom Tiffany (R)	May 12, 2020
116th	NY 27	Chris Collins (R)	Resigned October 1, 2019	Chris Jacobs (R)	June 23, 2020
116th	GA 5	John Lewis (D)	Died July 17, 2020	Kwanza Hall (D)	December 1, 2020
117th	LA 5	None	Representative-elect Luke Letlow (R) died December 29, 2020	Julia Letlow (R)	March 20, 2021
117th	LA 2	Cedric Richmond (D)	Resigned January 15, 2021	Troy Carter (D)	April 24, 2021
117th	NM 1	Deb Haaland (D)	Resigned March 16, 2021	Melanie Stansbury (D)	June 1, 2021
117th	TX 6	Ron Wright (R)	Died February 7, 2021	Jake Ellzey (R)	July 27, 2021
117th	OH 11	Marcia Fudge (D)	Resigned March 10, 2021	Shontel Brown (D)	November 2, 2021
117th	OH 15	Steve Stivers (R)	Resigned May 16, 2021	Mike Carey (R)	November 2, 2021
117th	FL 20	Alcee Hastings (D)	Died April 6, 2021	Sheila Cherfilus-McCormick (D)	January 11, 2022
117th	CA 22	Devin Nunes (R)	Resigned January 1, 2022	Connie Conway (R)	June 7, 2022
117th	TX 34	Filemon Vela Jr. (D)	Resigned March 31, 2022	Mayra Flores (R)	June 14, 2022
117th	NE 1	Jeff Fortenberry (R)	Resigned March 31, 2022	Mike Flood (R)	June 28, 2022
117th	MN 1	Jim Hagedorn (R)	Died February 17, 2022	Brad Finstad (R)	August 9, 2022
117th	AK at-large	Don Young (R)	Died March 18, 2022	Mary Peltola (D)	August 16, 2022
117th	NY 19	Antonio Delgado (D)	Resigned May 25, 2022	Pat Ryan (D)	August 23, 2022
117th	NY 23	Tom Reed (R)	Resigned May 10, 2022	Joe Sempolinski (R)	August 23, 2022
117th	IN 2	Jackie Walorski (R)	Died August 3, 2022	Rudy Yakym (R)	November 8, 2022
118th	VA 4	None	Donald McEachin (D) died November 28, 2022, during the previous Congress	Jennifer McClellan (D)	February 21, 2023
118th	RI 1	David Cicilline (D)	Resigned May 31, 2023	Gabe Amo (D)	November 7, 2023
118th	UT 2	Chris Stewart (R)	Resigned September 15, 2023	Celeste Maloy (R)	November 21, 2023
118th	NY 3	George Santos (R)	Expelled on December 1, 2023	Tom Suozzi (D)	February 13, 2024
118th	NY 26	Brian Higgins (D)	Resigned February 2, 2024	Tim Kennedy (D)	April 30, 2024
118th	CA 20	Kevin McCarthy (R)	Resigned December 31, 2023	Vince Fong (R)	May 21, 2024
118th	OH 6	Bill Johnson (R)	Resigned January 21, 2024	Michael Rulli (R)	June 11, 2024
118th	CO 4	Ken Buck (R)	Resigned March 22, 2024	Greg Lopez (R)	June 25, 2024
118th	NJ 10	Donald Payne Jr. (D)	Died April 24, 2024	LaMonica McIver (D)	September 18, 2024
118th	WI 8	Mike Gallagher (R)	Resigned April 24, 2024	Tony Wied (R)	November 5, 2024
118th	TX 18	Sheila Jackson Lee (D)	Died July 19, 2024	Erica Lee Carter (D)	November 5, 2024
119th	FL 1	None	Matt Gaetz (R) resigned November 13, 2024, during the previous Congress	TBD	April 1, 2025
119th	FL 6	Michael Waltz (R)	Resigning January 20, 2025	TBD	April 1, 2025
119th	NY 21	Elise Stefanik (R)	Resigning TBD	TBD	TBD, 2025

Summary

In a few instances more than one seat was filled in a single special election, but each seat is counted separately in the list below.

Con­gress	Start	End	Special elec­tions	Cumu­lative total
1st	March 4, 1789	March 3, 1791	2	2
2nd	March 4, 1791	March 3, 1793	6	8
3rd	March 4, 1793	March 3, 1795	8	16
4th	March 4, 1795	March 3, 1797	12	28
5th	March 4, 1797	March 3, 1799	15	43
6th	March 4, 1799	March 3, 1801	11	54
7th	March 4, 1801	March 3, 1803	18	72
8th	March 4, 1803	March 3, 1805	11	83
9th	March 4, 1805	March 3, 1807	16	99
10th	March 4, 1807	March 3, 1809	11	110
11th	March 4, 1809	March 3, 1811	12	122
12th	March 4, 1811	March 3, 1813	7	129
13th	March 4, 1813	March 3, 1815	21	150
14th	March 4, 1815	March 3, 1817	23	173
15th	March 4, 1817	March 3, 1819	17	190
16th	March 4, 1819	March 3, 1821	15	205
17th	March 4, 1821	March 3, 1823	21	226
18th	March 4, 1823	March 3, 1825	11	237
19th	March 4, 1825	March 3, 1827	16	253
20th	March 4, 1827	March 3, 1829	16	269
21st	March 4, 1829	March 3, 1831	14	283
22nd	March 4, 1831	March 3, 1833	9	292
23rd	March 4, 1833	March 3, 1835	23	315
24th	March 4, 1835	March 3, 1837	20	335
25th	March 4, 1837	March 3, 1839	19	354
26th	March 4, 1839	March 3, 1841	18	372
27th	March 4, 1841	March 3, 1843	23	395
28th	March 4, 1843	March 3, 1845	14	409
29th	March 4, 1845	March 3, 1847	13	422
30th	March 4, 1847	March 3, 1849	10	432
31st	March 4, 1849	March 3, 1851	14	446
32nd	March 4, 1851	March 3, 1853	6	452
33rd	March 4, 1853	March 3, 1855	9	461
34th	March 4, 1855	March 3, 1857	9	470
35th	March 4, 1857	March 3, 1859	11	481
36th	March 4, 1859	March 3, 1861	7	488
37th	March 4, 1861	March 3, 1863	20	508
38th	March 4, 1863	March 3, 1865	6	514
39th	March 4, 1865	March 3, 1867	7 (+2[z])	523
40th	March 4, 1867	March 3, 1869	11	534
41st	March 4, 1869	March 3, 1871	16	550
42nd	March 4, 1871	March 3, 1873	10	560
43rd	March 4, 1873	March 3, 1875	13	573
44th	March 4, 1875	March 3, 1877	16	589
45th	March 4, 1877	March 3, 1879	6	595
46th	March 4, 1879	March 3, 1881	8	603
47th	March 4, 1881	March 3, 1883	16	619
48th	March 4, 1883	March 3, 1885	15	634
49th	March 4, 1885	March 3, 1887	11	645
50th	March 4, 1887	March 3, 1889	8	653
51st	March 4, 1889	March 3, 1891	17	670
52nd	March 4, 1891	March 3, 1893	15	685
53rd	March 4, 1893	March 3, 1895	21	706
54th	March 4, 1895	March 3, 1897	11	717
55th	March 4, 1897	March 3, 1899	13	730
56th	March 4, 1899	March 3, 1901	20	750
57th	March 4, 1901	March 3, 1903	17	767
58th	March 4, 1903	March 3, 1905	14	781
59th	March 4, 1905	March 3, 1907	17	798
60th	March 4, 1907	March 3, 1909	13	811
61st	March 4, 1909	March 3, 1911	13	824
62nd	March 4, 1911	March 3, 1913	15	839
63rd	March 4, 1913	March 3, 1915	19	858
64th	March 4, 1915	March 3, 1917	12	870
65th	March 4, 1917	March 3, 1919	23	893
66th	March 4, 1919	March 3, 1921	24	917
67th	March 4, 1921	March 3, 1923	20	937
68th	March 4, 1923	March 3, 1925	24	961
69th	March 4, 1925	March 3, 1927	11	972
70th	March 4, 1927	March 3, 1929	15	987
71st	March 4, 1929	March 3, 1931	27	1,014
72nd	March 4, 1931	March 3, 1933	24	1,038
73rd	March 4, 1933	January 3, 1935	15	1,053
74th	January 3, 1935	January 3, 1937	10	1,063
75th	January 3, 1937	January 3, 1939	15	1,078
76th	January 3, 1939	January 3, 1941	24	1,102
77th	January 3, 1941	January 3, 1943	19	1,121
78th	January 3, 1943	January 3, 1945	18	1,139
79th	January 3, 1945	January 3, 1947	16	1,155
80th	January 3, 1947	January 3, 1949	19	1,174
81st	January 3, 1949	January 3, 1951	11	1,185
82nd	January 3, 1951	January 3, 1953	15	1,200
83rd	January 3, 1953	January 3, 1955	9	1,209
84th	January 3, 1955	January 3, 1957	5	1,214
85th	January 3, 1957	January 3, 1959	10	1,224
86th	January 3, 1959	January 3, 1961	10	1,234
87th	January 3, 1961	January 3, 1963	12	1,246
88th	January 3, 1963	January 3, 1965	12	1,258
89th	January 3, 1965	January 3, 1967	10	1,268
90th	January 3, 1967	January 3, 1969	6	1,274
91st	January 3, 1969	January 3, 1971	14	1,288
92nd	January 3, 1971	January 3, 1973	10	1,298
93rd	January 3, 1973	January 3, 1975	10	1,308
94th	January 3, 1975	January 3, 1977	10	1,318
95th	January 3, 1977	January 3, 1979	6	1,324
96th	January 3, 1979	January 3, 1981	7	1,331
97th	January 3, 1981	January 3, 1983	9	1,340
98th	January 3, 1983	January 3, 1985	9	1,349
99th	January 3, 1985	January 3, 1987	5	1,354
100th	January 3, 1987	January 3, 1989	8	1,362
101st	January 3, 1989	January 3, 1991	12	1,374
102nd	January 3, 1991	January 3, 1993	6	1,380
103rd	January 3, 1993	January 3, 1995	7	1,387
104th	January 3, 1995	January 3, 1997	6	1,393
105th	January 3, 1997	January 3, 1999	9	1,402
106th	January 3, 1999	January 3, 2001	3	1,405
107th	January 3, 2001	January 3, 2003	9	1,414
108th	January 3, 2003	January 3, 2005	5	1,419
109th	January 3, 2005	January 3, 2007	6	1,425
110th	January 3, 2007	January 3, 2009	13	1,438
111th	January 3, 2009	January 3, 2011	11	1,449
112th	January 3, 2011	January 3, 2013	10	1,459
113th	January 3, 2013	January 3, 2015	11	1,470
114th	January 3, 2015	January 3, 2017	7	1,477
115th	January 3, 2017	January 3, 2019	14	1,491
116th	January 3, 2019	January 3, 2021	8	1,499
117th	January 3, 2021	January 3, 2023	15	1,514
118th	January 3, 2023	January 3, 2025	11	1,525
119th	January 3, 2025	January 3, 2027	3	1,528

See also

• List of special elections to the United States Senate

Notes

1. Congress during which election occurred
2. For elections prior to 1901, the date of election was not typically recorded, so the date the Representative was seated is provided.
3. Representative-elect, who served after the start of the Congress but vacated the seat without being sworn in.
4. Date of election.^[2]
5. Representative-elect, who vacated the seat before the start of the Congress.
6. Date given for the start of the term, of the person elected at the special election (source: Congressional Biographical Directory). In some cases this is clearly wrong as the date of the legal start of the Congress is given, even though the member was elected at a later date.
7. MD-7 12th C.: The vacancies, for the remainder of the 11th Congress and the whole of the 12th Congress, were both filled by one ballot. This was the first of three examples of this method being used in Congressional special elections
8. NY-15 13th C.: Bowers election was challenged by Isaac Williams Jr. (D-R). Williams was seated in place of Bowers December 20, 1813
9. NH-AL 13th C.: Samuel Smith resigned May 21, 1814 (although the resignation is not mentioned in the Congressional Biographical Directory). At the special election no candidate received the more than 50% of the votes required to be elected. The seat appears to have been left vacant for the remainder of the Congress
10. NJ-AL 13th C.: Jacob Hufty was elected from the 3rd District, but by the time of the special election the legislature had reinstated at-large elections. This was the second of three cases when the special election was held on a different basis than the general election
11. Date seated. Election date unknown.
12. MA-10 18th C.: Bailey had presented credentials as a Member-elect, but the election was contested on the ground that he was not a resident of the district he purported to represent, and the House declared he was not entitled to the seat. He returned to a home in the district and was subsequently elected.^[4]
13. Edward Tattnall, who previously represented Georgia at-large in the U.S. House of Representatives, was re-elected in the First district, but resigned before the beginning of the next Congress
14. In the 1826 elections, there was a tie vote in the 2nd district, as a result, there was no winner and a second election was held in 1827.
15. After his initial election, Sutherland resigned.
16. George W. Towns was installed January 5, 1846, after Representative-elect Washington Poe never took seat.^[5]
17. Died before taking office, necessitating the November 26 special election
18. Alexander H. Stephens was installed December 1, 1873, after Representative-elect Ambrose R. Wright died before taking seat.^[5]
19. Benjamin Harvey Hill was installed May 5, 1875, after Representative-elect Garnett McMillan died before taking office.^[5]
20. Democrat George A. La Dow was elected, but died before Congress convened.
21. Congress refused to install Berger, leaving Wisconsin's 5th district vacant for the remainder of the 66th Congress
22. Died before taking the oath of office
23. District created following the 1980 census.
24. Resigned in the 110th Congress, but the special election was not held until the 111th congress
25. The special election for Georgia's 9th district was scheduled for May 18, 2010, but since no candidate received 50% of the vote, a runoff was held June 8
26. The two additional special elections were held in states which had not then been re-admitted to representation in Congress, after the Civil War. Those elections were rejected by the House of Representatives.

References

1. Knotts, H. Gibbs; Ragusa, Jordan M. (2016). "The Nationalization of Special Elections for the U.S. House of Representatives". Journal of Elections, Public Opinion and Parties. 26 (1): 22–39. doi:10.1080/17457289.2015.1063497. ISSN 1745-7289. S2CID 216142342.
2. Dubin, Michael J. (1998). United States Congressional Elections, 1788-1997: The Official Results. McFarland and Company.
3. "DAVENPORT, James - Biographical Information". bioguide.congress.gov.
4. Bioguide.
5. Martis, Kenneth C. (1989). The Historical Atlas of Political Parties in the United States Congress. New York: Macmillan Publishing Company
6. "Our Campaigns - NY District 7 Special Race - Feb 15, 1949".
7. "Our Campaigns - NY District 20 Special Race - May 17, 1949".
8. "LA District 7 Special Runoff Race".
9. Camia, Catalina; Davis, Susan (November 21, 2012). "Jesse Jackson Jr. to resign from Congress". USA Today. Retrieved November 21, 2012.
10. "Tim Murphy resigns from Congress". Politico. October 5, 2017. Retrieved October 5, 2017.
11. Levy, Adam (November 30, 2018). "North Carolina elections board delays certification of congressional election results again". CNN. Retrieved February 22, 2019.
12. Veronica Stracqualursi; Dianne Gallagher; Kate Sullivan (February 21, 2019). "North Carolina elections board votes for new election in congressional race". CNN. Retrieved February 22, 2019.

Sources

• United States Congressional Elections, 1788-1997: The Official Results, by Michael J. Dubin (McFarland and Company, 1998)

External links

• Vacancies in the current Congress, via clerk.house.gov
• List of members for 101st-present, via clerk.house.gov
• Biographical Directory of the United States Congress 1774 - 2005 Contains complete listing of all Congresses