Washington County, Illinois Established January 2, 1818 Parent County = St. Clair County, Illinois Washington County was formed including what is now Clinton County; on December 28, 1824 Clinton County was separated, leaving Washington County as it is now County Seat = Nashville Latitude = 36º 58' N to 42º 30' N Longitude = 87º 30' W to 91º 30' W All submitters retain their original copyright. It may not be included in any publication or media, without the express, written consent of the authors. Information and photos on these pages may only be used for personal research. This county is adoptable. Contact: ILGenWeb State Coordinator
Washington County, IL Archives |