Clinton County, Illinois

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
• Density	73/sq mi (28/km2)
Time zone	UTC−6 (Central)
• Summer (DST)	UTC−5 (CDT)
Congressional district	12th
Website	www.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]

^ "Clinton County, Illinois". United States Census Bureau. Retrieved June 8, 2023.
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.
^ "Mean Center of Population for the United States: 1790 to 2000" (PDF). US Census Bureau. Archived from the original (PDF) on November 3, 2001. Retrieved September 17, 2011.