Illinois State Route 91 is a north-south highway in North-Central Peoria County. This runs from the northwest side of Peoria to the Peoria/Stark County Line. IL St Rt 91 passes through the following towns in Peoria County. Peoria
Dunlap
Princeville IL St Rt 91 is multi-plexed in Peoria County. Illinois State Route 90, near Princeville.
WB IL St Rt 90/NB IL St Rt 91 at Princeville. WB IL St Rt 90/NB IL St Rt 91 east of Princeville. WB IL St Rt 90/NB IL St Rt 91 west of Edelstein. WB IL St Rt 90/NB IL St Rt 91 at a BNSF Railway underpass near Edelstein. NB IL St Rt 91 north of Dunlap. NB IL St Rt 91 south of Dunlap. NB IL St Rt 91 near Alta. The southern end of IL St Rt 91. A BGS on WB U.S. Rt. 150. A BGS on WB U.S. Rt. 150.
