Clay County Jail

The Clay County Jail is a historic former jail located at 195 Main St. in Louisville, Illinois. Built in 1893, the jail was the third used by the county. The brick jail was designed in the Queen Anne style; its design features gabled dormers at the front of its hip roof and a spindlework front porch. The jail building also included the county sheriff's residence, a common arrangement which allowed the sheriff to oversee the prisoners at all times. The jail is now used as the Clay County Historical Society Museum.

The jail was added to the National Register of Historic Places on August 6, 1998.