Washington (state) statistical areas
The U.S. state of Washington has 29 statistical areas that have been delineated by the Office of Management and Budget (OMB). On July 21, 2023, the OMB delineated six combined statistical areas , 13 metropolitan statistical areas , and ten micropolitan statistical areas in Washington.[ 1] As of 2023, the largest of these is the Seattle-Tacoma, WA CSA , anchored by Washington's largest city, Seattle and including its capital, Olympia .
The state historically had three metropolitan areas: Seattle , Spokane , and Tacoma . Seattle and Tacoma were eventually merged, while other metropolitan areas were added in the 1970s and 1980s.[ 2]
Background
The Office of Management and Budget (OMB) has designated more than 1,000 statistical areas for the United States and Puerto Rico .[ 3] These statistical areas are important geographic delineations of population clusters used by the OMB, the United States Census Bureau , planning organizations, and federal, state, and local government entities.
The OMB defines a core-based statistical area (commonly referred to as a CBSA ) as the county or counties (or county-equivalents ) surrounding at least one densely-settled core of at least 10,000 population,[ 3] "plus adjacent counties having a high degree of social and economic integration with the core as measured through commuting ties with the counties containing the core".[ 3] The OMB further divides core-based statistical areas based on population into metropolitan statistical areas (MSAs) for those with at least 50,000 and micropolitan statistical areas (μSAs) for those with 10,000 to 49,999 people.[ 3]
The OMB defines a combined statistical area (CSA) as two or more adjacent core-based statistical areas where the employment interchange rate (% commuting from A to B plus % commuting from B to A) is at least 15%.[ 3] The primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area.
Table
The 29 United States statistical areas and 39 counties of the State of Washington [ a]
Combined statistical area[ 1]
2023 population (est.)[ 4]
Core-based statistical area[ 1]
2023 population (est.)[ 4]
County
2023 population (est.)[ 4]
Metropolitan division
2023 population (est.)[ 4]
Seattle-Tacoma, WA CSA
4,993,725
Seattle-Tacoma-Bellevue, WA MSA
4,044,837
King County, Washington
2,271,380
Seattle-Bellevue-Kent, WA MD
2,271,380
Pierce County, Washington
928,696
Tacoma-Lakewood, WA MD
928,696
Snohomish County, Washington
844,761
Everett, WA MD
844,761
Olympia-Lacey-Tumwater, WA MSA
299,003
Thurston County, Washington
299,003
none
Bremerton-Silverdale-Port Orchard, WA MSA
277,658
Kitsap County, Washington
277,658
Mount Vernon-Anacortes, WA MSA
131,417
Skagit County, Washington
131,417
Oak Harbor, WA μSA
86,267
Island County, Washington
86,267
Centralia, WA μSA
86,154
Lewis County, Washington
86,154
Shelton, WA μSA
68,389
Mason County, Washington
68,389
Portland-Vancouver-Salem, OR-WA CSA
3,286,669 646,654 (WA )
Portland-Vancouver-Hillsboro, OR-WA MSA
2,508,050 533,790 (WA)
Multnomah County, Oregon
789,698
Washington County, Oregon
598,865
Clark County, Washington
521,150
Clackamas County, Oregon
423,173
Yamhill County, Oregon
108,644
Columbia County, Oregon
53,880
Skamania County, Washington
12,640
Salem, OR MSA
436,546
Marion County, Oregon
346,741
Polk County, Oregon
89,805
Albany, OR MSA
131,496
Linn County, Oregon
131,496
Longview-Kelso, WA MSA
112,864
Cowlitz County, Washington
112,864
Corvallis, OR MSA
97,713
Benton County, Oregon
97,713
Spokane-Spokane Valley-Coeur d'Alene, WA-ID CSA
785,302 600,292
Spokane-Spokane Valley, WA MSA
600,292
Spokane County, Washington
551,455
Stevens County, Washington
48,837
Coeur d'Alene, ID MSA
185,010
Kootenai County, Idaho
185,010
Kennewick-Richland-Walla Walla, WA CSA
375,821
Kennewick-Richland, WA MSA
314,253
Benton County, Washington
215,219
Franklin County, Washington
99,034
Walla Walla, WA MSA
61,568
Walla Walla County, Washington
61,568
none
Yakima, WA MSA
256,643
Yakima County, Washington
256,643
Bellingham, WA MSA
231,919
Whatcom County, Washington
231,919
Wenatchee–East Wenatchee, WA MSA
124,795
Chelan County, Washington
79,997
Douglas County, Washington
44,798
Moses Lake-Othello, WA CSA
123,498
Moses Lake, WA μSA
102,678
Grant County, Washington
102,678
Othello, WA μSA
20,820
Adams County, Washington
20,820
none
Port Angeles, WA μSA
77,616
Clallam County, Washington
77,616
Aberdeen, WA μSA
77,290
Grays Harbor County, Washington
77,290
Pullman-Moscow, WA-ID CSA
89,313 48,012 (WA)
Pullman, WA μSA
48,012
Whitman County, Washington
48,012
Moscow, ID μSA
41,301
Latah County, Idaho
41,301
none
Ellensburg, WA μSA
45,508
Kittitas County, Washington
45,508
Port Townsend, WA μSA
33,714
Jefferson County, Washington
33,714
Lewiston, ID-WA MSA
65,536 22,549 (WA)
Nez Perce County, Idaho
42,987
Asotin County, Washington
22,549
none
Okanogan County, Washington
43,712
Pacific County, Washington
24,200
Klickitat County, Washington
23,589
San Juan County, Washington
18,566
Pend Oreille County, Washington
14,361
Lincoln County, Washington
11,738
Ferry County, Washington
7,497
Wahkiakum County, Washington
4,765
Columbia County, Washington
4,053
Garfield County, Washington
2,363
State of Washington
7,812,880
Primary statistical areas
Primary statistical areas (PSAs) include all combined statistical areas and any core-based statistical area that is not a constituent of a combined statistical area. Of the 29 statistical areas of Washington, 14 are PSAs comprising six combined statistical areas, four metropolitan statistical areas and four micropolitan statistical areas.
The 14 primary statistical areas of the State of Washington[ b]
2020 rank
Primary statistical area [ 1]
Population
2023 estimate[ 4]
Change
2020 Census [ 5]
Change
2010 Census [ 6]
1
Seattle-Tacoma, WA CSA
4,993,725
+0.81 %
4,953,421
+15.88 %
4,274,767
2
Portland-Vancouver-Salem, OR-WA CSA (WA)
646,654
+3.29 %
626,077
+16.19 %
538,839
3
Spokane-Spokane Valley-Coeur d'Alene, WA-ID CSA
600,292
+2.48 %
585,784
+13.80 %
514,752
4
Kennewick-Richland-Walla Walla, WA CSA
375,821
+2.63 %
366,206
+17.33 %
312,121
5
Yakima, WA MSA
256,643
−0.03 %
256,728
+5.55 %
243,231
6
Bellingham, WA MSA
231,919
+2.24 %
226,847
+12.78 %
201,140
7
Wenatchee-East Wenatchee, WA MSA
124,795
+2.28 %
122,012
+10.04 %
110,884
8
Moses Lake-Othello, WA CSA
123,498
+3.14 %
119,736
+11.02 %
107,848
9
Port Angeles, WA μSA
77,616
+0.60 %
77,155
+8.05 %
71,404
10
Aberdeen, WA μSA
77,290
+2.19 %
75,636
+3.90 %
72,797
11
Pullman-Moscow, WA-ID CSA (WA)
48,012
+0.08 %
47,973
+7.14 %
44,776
12
Ellensburg, WA μSA
45,508
+2.64 %
44,337
+8.36 %
40,915
13
Port Townsend, WA μSA
33,714
+2.23 %
32,977
+10.39 %
29,872
14
Lewiston, ID-WA MSA (WA)
22,549
+1.18 %
22,285
+3.06 %
21,623
Portland-Vancouver-Salem, OR-WA CSA
3,286,669
+0.18 %
3,280,736
+12.30 %
2,921,408
Spokane-Spokane Valley-Coeur d'Alene, WA-ID CSA
785,302
+3.72 %
757,146
+15.91 %
653,246
Pullman-Moscow, WA-ID CSA
89,313
+2.08 %
87,490
+6.67 %
82,020
Lewiston, ID-WA MSA
65,536
+1.80 %
64,375
+5.73 %
60,888
See also
Notes
^ An out-of-state area and its population are displayed in green. An area that extends into more than one state is displayed in purple. A purple population number over a black population number show the total population versus the in-state population. The state's abbreviation is also shown next to the in-state total.
^ For PSAs comprising populations from multiple states, they are listed twice to show both their intrastate population within that PSA as well as the PSA's total population. Only the intrastate population is ranked.
References
^ a b c d Revised Delineations of Metropolitan Statistical Areas, Micropolitan Statistical Areas, and Combined Statistical Areas, and Guidance on Uses of the Delineations of These Areas (July 21, 2023). "OMB BULLETIN NO. 23-01" (PDF) . Office of Management and Budget . Retrieved November 5, 2023 . {{cite web }}
: CS1 maint: multiple names: authors list (link )
^ "Three Puget Sound cities join state's other five census metropolitan areas" . The News Tribune . Associated Press . December 2, 1981. p. B13. Retrieved March 4, 2024 – via Newspapers.com .
^ a b c d e "2020 Standards for Delineating Core Based Statistical Areas" . Office of Management and Budget . July 16, 2021. Retrieved December 13, 2021 .
^ a b c d e "County Population Totals and Components of Change: 2020-2023" . United States Census Bureau , Population Division. March 2023. Retrieved May 21, 2024 .
^ "PROFILE OF GENERAL POPULATION AND HOUSING CHARACTERISTICS" . U.S. Census Bureau . 2020. Retrieved May 21, 2024 .
^ "Annual Estimates of the Resident Population for Counties: April 1, 2010 to July 1, 2019" . U.S. Census Bureau . 2019. Retrieved May 21, 2024 .
External links
47°22′57″N 120°26′50″W / 47.3826°N 120.4472°W / 47.3826; -120.4472 (State of Washington )