Roads of the Mid-South & West > Highways of the State of Illinois > County Highways of the State of Illinois > County Highways of Clay County > Clay County Highway 20
 | Clay County Highway 20 |
Clay County Highway 20 is a east-west highway in Central Clay County. It runs south, southwest of Louisville.
A Clay County guide marker.
WB CCH 20, west of U.S. Rt. 45.
