Illinois State Route 75 is a east-west highway in Eastern Stephenson County. This runs from the Winnebago/Stephenson County Line, near Davis, to Freeport. IL St Rt 75 passes through the following towns in Stephenson County. Davis Rock City Dakota Freeport
IL St Rt 75 is not multi-plexed in Stephenson County. IL St Rt 75 intersects the following highways in Stephenson County. U.S. Rt. 20, near Freeport.
A BGS on EB U.S. Rt. 20. A BGS on WB U.S. Rt. 20. A BGS on WB U.S. Rt. 20. WB IL St Rt 75 at U.S. Rt. 20. WB IL St Rt 75 west of U.S. Rt. 20. WB IL St Rt 75 west of U.S. Rt. 20. WB IL St Rt 75 at Commercial Ave. WB IL St Rt 75 at the Pecatonica River. WB IL St Rt 75 at Adams Street. The western end in Freeport. The western end marker.
