Illinois Route 131

Illinois Route 131 (IL 131) is a northsouth state road in northeastern Illinois. It extends south from Wisconsin Highway 31 and Lake CR A1/19 (128th Street) at the Illinois/Wisconsin state line by Pleasant Prairie, south to Illinois Route 176 in Lake Bluff, a distance of 15.15 miles (24.38 km).[1]

Illinois Route 131
Green Bay Road
IL 131 highlighted in red
Route information
Maintained by IDOT
Length15.15 mi[1] (24.38 km)
Major junctions
South end IL 176 in Lake Bluff
North end WIS 31 in Winthrop Harbor
Highway system
IL 130IL 132

Route description

Illinois 131 is called Green Bay Road for its entire length, but Green Bay Road becomes a residential street and extends south through various North Shore communities to Evanston, a distance of approximately 20 miles (32 km) south of Illinois 176. It is one of very few state routes whose named road is longer than the marked state road. Green Bay Road actually continues south to Old Elm Road (Lake CR 52) while there is a second segment of Green Bay Road that starts at a dead end in Highwood and ends at Ridge Avenue in Evanston.

The road parallels U.S. Route 41 (Skokie Highway), which is only a few miles to the west, and Illinois Route 137 (Amstutz Expressway), which is only a few miles to the east. It is the major northsouth road between those two expressways.


SBI Route 131 ran from Mattoon to Greenup in southeastern Illinois. This was dropped in 1937 for Illinois Route 121. The next year, Illinois 131 was used on a road that extended Highway 31 south into Illinois. This had formerly been Illinois Route 68. Had Illinois 31 not already been in use, the road south of Wisconsin may have been designated Illinois 31 instead.[2]

Major Intersections

The entire route is in Lake County.

Lake Bluff0.00.0 IL 176 west (Rockland Rd)Southern terminus of IL 131; eastern terminus of IL 176
North Chicago2.03.2 IL 137 (Buckley Rd)
Waukegan5.08.0 IL 120 west (Belvidere Rd)Eastern terminus of IL 120
6.510.5 IL 132 west (Grand Ave)Eastern terminus of IL 132
Zion13.121.1 IL 173 (Rosecrans Rd)
15.1524.38 WIS 31Wisconsin state line; northern terminus of IL 131
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.
  2. Carlson, Rich. Illinois Highways Page: Routes 121 thru 140. Last updated April 15, 2005. Retrieved May 2, 2006.
  3. Google (March 3, 2017). "Overview Map of IL 131" (Map). Google Maps. Google. Retrieved March 3, 2017.

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