LL Road, just west of Kaskaskia Road, will be closed Monday, October 3rd, from 8 am to 3 pm.
Please use an alternate route during this time. Sorry for any inconvenience. We thank you for your cooperation.
Questions can be directed to the Highway Department at 618-939-8682.
GIS has created some new user friendly maps/apps. Click the link above to check them out.
Welcome to Monroe County, Illinois
The lush rolling hills and fertile farmland in Monroe County make it a wonderful location to raise a family. With a population of just under 34,000, it boasts numerous picturesque communities including the larger towns of Columbia, Waterloo (county seat), Valmeyer, Hecker, as well as other smaller quaint villages such as Maeystown and Fults.
Founded in 1816 and named for James Monroe, Monroe County is located in Southwest Illinois and is bordered on the west by the Mississippi river. Geographically the county is located just 11 miles to the south east of St. Louis Missouri.