Fayette County, Illinois

Fayette County
Fayette County Courthouse in Vandalia
Map of Illinois highlighting Fayette County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 39°00′N 89°01′W / 39°N 89.02°W / 39; -89.02
Country United States
State Illinois
Founded1821
Named forMarquis de Lafayette
SeatVandalia
Largest cityVandalia
Area
 • Total725 sq mi (1,880 km2)
 • Land716 sq mi (1,850 km2)
 • Water8.9 sq mi (23 km2)  1.2%
Population
 (2020)
 • Total21,488
 • Density30/sq mi (11/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district15th
Websitewww.fayettecountyillinois.org

Fayette County is a county located in the U.S. state of Illinois. As of the 2020 census, the population was 21,488.[1] Its county seat is Vandalia,[2] the site of the Vandalia State House State Historic Site. Ramsey Lake State Recreation Area is located in the northwestern part of this county.

  1. ^ "Fayette County, Illinois". United States Census Bureau. Archived from the original on June 28, 2023. Retrieved November 30, 2023.
  2. ^ "NACo County Explorer". County Explorer. National Association of Counties. Retrieved November 30, 2023.

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