Illinois State Route 73 is a north-south highway in Western Stephenson County. This runs from the Wisconsin/Illinois State Line, near Winslow, to the Stephenson/Carroll County Line, near Loran. IL St Rt 73 passes through the following towns in Stephenson County. Winslow Lena
Pearl City IL St Rt 73 is not multi-plexed in Stephenson County. IL St Rt 73 intersects the following highway in Stephenson County. U.S. Rt. 20, near Lena.
SB IL St Rt 73 near Lena. SB IL St Rt 73 south of Lena. NB IL St Rt 73 north of U.S. Rt. 20. SB IL St Rt 73 at U.S. Rt. 20. A junction marker on WB U.S. Rt. 20.
