Illinois State Route 2 runs north-south through the center of Winnebago County. Northwest of Rockford, this highway is a expressway from IL St Rt 75 across the Rock River. South of the end of the expressway, this highway is designatied for possible up-grade to freeway status. IL St Rt 2 passes through the following towns in Winnebago County. South Beloit
Rockford
IL St Rt 2 is multi-plexed in Winnebago County. Illinois State Route 75, from South Beloit to near Rockton.
The northern end at the Illinois/Wisconsin State Line. The northern end marker. A junction marker on NB IL St Rt 2/EB IL St Rt 75. A Winnebago County mile marker. SB IL St Rt 2 at the end of the expressway near the Rock River. NB IL St Rt 2 near Latham Park. SB IL St Rt 2 at U.S. Rt. 20. BGS on EB U.S. Rt. 20.