Clay County, Illinois

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Clay County
Clay County Courthouse in Louisville
Map of Illinois highlighting Clay County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 38°46′N 88°29′W / 38.76°N 88.49°W / 38.76; -88.49
Country United States
State Illinois
Founded1824
Named forHenry Clay
SeatLouisville
Largest cityFlora
Area
 • Total470 sq mi (1,200 km2)
 • Land468 sq mi (1,210 km2)
 • Water1.3 sq mi (3 km2)  0.3%%
Population
 (2010)
 • Total13,815
 • Density29/sq mi (11/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district15th

Clay County is a county in Illinois.