PROFILBARU.COM

	█ Average max. and min. temperatures in °F
	█ Precipitation totals in inches
	Source: The Weather Channel

Carlyle, Illinois
Climate chart (explanation)
	█ Average max. and min. temperatures in °F
	█ Precipitation totals in inches
	Source: The Weather Channel
Metric conversion
	█ Average max. and min. temperatures in °C
	█ Precipitation totals in mm

Clinton County
Clinton County
County
	Clinton County Courthouse
	Location within the U.S. state of Illinois
	Illinois's location within the U.S.
	Coordinates: 38°37′N 89°25′W / 38.61°N 89.42°W
Country	United States
State	Illinois
Founded	1824
Named for	DeWitt Clinton
Seat	Carlyle
Largest city	Breese
Area
• Total	503 sq mi (1,300 km2)
• Land	474 sq mi (1,230 km2)
• Water	29 sq mi (80 km2) 5.8%
Population (2020)
• Total	36,899
• Estimate (2023)	36,785
• Density	73/sq mi (28/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	12th
Website	clintonco.illinois.gov

Clinton County is a county located in the U.S. state of Illinois. At the 2020 census, the population was 36,899.^[1] Its county seat is Carlyle.^[2] In 1960, the United States Census Bureau placed the mean center of U.S. population in Clinton County.^[3] Clinton County is part of the St. Louis, MO-IL Metropolitan Statistical Area.

History

In 1805, prior to the establishment of the county, the territorial government established a post road from its capital (Vincennes, Indiana) to St. Louis, Missouri, passing through the county.^[4] In 1808 a wagon road was laid out through the future Clinton County. It extended from the Goshen Settlement to the Ohio salt works and crossed the Kaskaskia River at Carlyle.^[5] Clinton County became the home to early settlers by 1814, when the first land entries were made. ^[6]

Clinton County was created on December 27, 1824, from portions of Washington, Fayette, and Bond Counties. It was named for the seventh Governor of New York, DeWitt Clinton, who helped build the Erie Canal.^[7]

Crossing the Kaskaskia became much easier when the bridge now known as the General Dean Suspension Bridge was built in 1859, at a cost of $40,000.^[8] Before the bridge was constructed, crossings involved a ferry or a mud bridge.^[9]^[10] The Illinois General Assembly set aside $20,000 for bridge restoration in 1951, and in 1953 the bridge was named after William F. Dean.^[8]

Geography

According to the U.S. Census Bureau, the county has a total area of 503 square miles (1,300 km²), of which 474 square miles (1,230 km²) is land and 29 square miles (75 km²) (5.8%) is water.^[11] Eldon Hazlet State Recreation Area and South Shore State Park are in Clinton County. Its southern border is the Kaskaskia River.

Climate and weather

In recent years, average temperatures in the county seat of Carlyle have ranged from a low of 19 °F (−7 °C) in January to a high of 88 °F (31 °C) in July, although a record low of −22 °F (−30 °C) was recorded in January 1994 and a record high of 104 °F (40 °C) was recorded in July 1980. Average monthly precipitation ranged from 2.17 inches (55 mm) in January to 4.44 inches (113 mm) in June.^[12]

Transit

South Central Transit

Major highways

Adjacent counties

Bond County - north
Fayette County - northeast
Madison County - northwest
Marion County - east
St. Clair County - west
Washington County - south

Demographics

Historical population
Census	Pop.	Note	%±
1830	2,330		—
1840	3,718		59.6%
1850	5,139		38.2%
1860	10,941		112.9%
1870	16,285		48.8%
1880	18,714		14.9%
1890	17,411		−7.0%
1900	19,824		13.9%
1910	22,832		15.2%
1920	22,947		0.5%
1930	21,369		−6.9%
1940	22,912		7.2%
1950	22,594		−1.4%
1960	24,029		6.4%
1970	28,315		17.8%
1980	32,617		15.2%
1990	33,944		4.1%
2000	35,535		4.7%
2010	37,762		6.3%
2020	36,899		−2.3%
2023 (est.)	36,785	^[13]	−0.3%
US Decennial Census^[14] 1790-1960^[15] 1900-1990^[16] 1990-2000^[17] 2010^[18]

As of the 2010 United States census, there were 37,762 people, 14,005 households, and 9,760 families residing in the county.^[19] The population density was 79.7 inhabitants per square mile (30.8/km²). There were 15,311 housing units at an average density of 32.3 per square mile (12.5/km²).^[11] The racial makeup of the county was 93.4% white, 3.5% black or African American, 0.4% Asian, 0.2% American Indian, 1.2% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 2.8% of the population. In terms of ancestry, 54.8% were German, 9.8% were Irish, 5.8% were English, and 5.6% were American.^[20]

Of the 14,005 households, 32.7% had children under the age of 18 living with them, 56.5% were married couples living together, 8.7% had a female householder with no husband present, 30.3% were non-families, and 25.1% of all households were made up of individuals. The average household size was 2.55 and the average family size was 3.02. The median age was 39.3 years.

The median income for a household in the county was $55,278 and the median income for a family was $66,682. Males had a median income of $45,119 versus $34,051 for females. The per capita income for the county was $25,392. About 5.2% of families and 7.8% of the population were below the poverty line, including 9.2% of those under age 18 and 5.7% of those age 65 or over.^[21]

Education

Carlyle Community Unit School District 1
Patoka Community Unit School District 100
Sandoval Community Unit School District 501
Wesclin Community Unit School District 3
Central Community High School, Breese
Mater Dei Catholic High School, Breese

Communities

Cities

Breese
Carlyle
Centralia (partial)
Trenton
Wamac (partial)

Villages

Townships

Unincorporated Communities

Politics

United States presidential election results for Clinton County, Illinois^[22]
Year	Republican		Democratic		Third party(ies)
Year	No.	%	No.	%	No.	%
2024	14,407	74.62%	4,447	23.03%	452	2.34%
2020	14,304	74.45%	4,493	23.38%	417	2.17%
2016	12,412	71.26%	3,945	22.65%	1,062	6.10%
2012	10,524	63.86%	5,596	33.95%	361	2.19%
2008	9,357	54.04%	7,657	44.22%	300	1.73%
2004	10,219	59.65%	6,797	39.68%	115	0.67%
2000	8,588	55.67%	6,436	41.72%	403	2.61%
1996	6,065	43.81%	6,104	44.09%	1,675	12.10%
1992	5,771	36.47%	6,686	42.26%	3,365	21.27%
1988	7,681	56.15%	5,935	43.38%	64	0.47%
1984	9,233	66.43%	4,628	33.30%	38	0.27%
1980	8,500	62.53%	4,470	32.88%	623	4.58%
1976	7,245	53.00%	6,275	45.90%	151	1.10%
1972	7,931	62.39%	4,756	37.41%	25	0.20%
1968	6,561	53.78%	4,453	36.50%	1,185	9.71%
1964	4,692	39.00%	7,339	61.00%	0	0.00%
1960	5,709	47.96%	6,188	51.99%	6	0.05%
1956	7,378	63.46%	4,242	36.48%	7	0.06%
1952	6,760	58.18%	4,853	41.76%	7	0.06%
1948	5,128	51.47%	4,773	47.91%	62	0.62%
1944	6,753	62.82%	3,944	36.69%	53	0.49%
1940	7,582	62.00%	4,558	37.27%	90	0.74%
1936	3,653	32.78%	5,355	48.05%	2,137	19.17%
1932	2,548	24.35%	7,736	73.92%	182	1.74%
1928	3,031	30.77%	6,774	68.76%	47	0.48%
1924	2,358	29.69%	1,693	21.32%	3,891	48.99%
1920	4,564	63.71%	1,661	23.19%	939	13.11%
1916	3,423	42.59%	4,201	52.27%	413	5.14%
1912	973	20.48%	2,674	56.29%	1,103	23.22%
1908	2,104	39.11%	3,016	56.06%	260	4.83%
1904	1,848	43.02%	2,153	50.12%	295	6.87%
1900	1,964	41.60%	2,637	55.86%	120	2.54%
1896	1,863	41.75%	2,572	57.64%	27	0.61%
1892	1,361	34.68%	2,393	60.97%	171	4.36%