Illinois State Route 111 is a north-south highway in Northwest St. Clair County. It runs from near Madison/St. Clair County Line to near Frank Holten State Park. IL St Rt 111 passes through the following towns in St. Clair County. Fairmont City
Washington Park
East St. Louis
IL St Rt 111 is not multi-plexed in St. Clair County. IL St Rt 111 intersects the following highway in St. Clair County. Interstate 64, at Washington Park.
A BGS on WB I-64. A St. Clair County mile marker. NB IL St Rt 111 in East St. Louis. NB IL St Rt 111 at the southern start. The southern end marker.
