Illinois 91 starts 3 miles south of Kewanee, then winds east and south to end up on the western outskirts of Peoria. It runs more north-south than east-west.
Intersections from north to south:
IL91 begins at US34 south of Kewanee
IL93 at its western end
IL91 joins IL17 east at Toulon
IL91 breaks off of IL17 to head south, at Wyoming
IL91 joins IL90 east at Princeville
IL91 breaks off of IL90 to head south
IL91 ends at US150, seconds west of IL6.
It passes through these towns: Toulon, Wyoming, Princeville, Dunlap.
