Roads of the Mid-South & West > Highways of the State of Illinois > Illinois State Route 51-100 > Illinois State Route 78
|Illinois State Route 78|
Illinois State Route 78 runs north-south through Western Illinois. It starts at the Wisconsin/Illinois State Line and heads south into the Illinois River Valley, before ending at Jacksonville. Info on IL St Rt 78 is broken down by county below.
13 November 2017