Illinois State Route 180 is a north-south highway in Eastern Knox County. This runs from Illinois State Route 17, near Galva, to U.S. Rt. 150, near Williamsfield. IL St Rt 180 passes through the following town in Knox County. Williamsfield IL St Rt 180 is not multi-plexed in Knox County. IL St Rt 180 intersects the following highways in Knox County. Illinois State Route 17, near Galva.
A junction sign on EB IL St Rt 17. A junction marker on WB IL St Rt 17. The northern end of IL St Rt 180. The northern end marker. SB IL St Rt 180 north of IL St Rt 167. A Knox County mile marker near U.S. Rt. 150. The southern end marker.
