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County Information



Some of the cities, towns, and places in Clay County are Bible Grove, Blair, Camp Travis, Clay City, Cruse, Flora, Greendale, Harter, Hoosier, Hord, Ingraham, Kenner, Larkinsburg, Louisville, Oskaloosa, Pixley, Riffle, Songer, Stanford, Wendelin, Xenia

Clay County  Image

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.In 1950, the U.S. Census Bureau placed the mean center of U.S. population in Clay County.