Clay County
County in Illinois
Clay County is a county in the southeastern portion of the U.S. state of Illinois. As of the 2020 United States Census, the population was 13,288. Since 1842, its county seat has been Louisville, in the center of the county's area. Wikipedia
Population: 13,047 (2022)
Cities: Louisville, Flora, Clay City, and more
County seat: Louisville
Area: 470 mi²
Congressional district: 12th
Founded: December 23, 1824 (created); March 8, 1825 (organized)
Largest city: Flora