Illinois Route 31

Illinois Route 31 marker
Illinois Route 31
Map
IL 31 highlighted in red
Route information
Maintained by IDOT
Length58.41 mi[1] (94.00 km)
Existed1937[2]–present
Major junctions
South end US 34 in Oswego
Major intersections
North end US 12 in Richmond
Location
CountryUnited States
StateIllinois
CountiesKendall, Kane, McHenry
Highway system
US 30 IL 32
IL 394US 430 US 460

Illinois Route 31 (IL 31) is a 58.41-mile-long (94.00 km) north–south state highway in northeastern Illinois, United States. It travels from U.S. Route 34 (US 34) in Oswego north to US 12, near the Wisconsin state line, just south of Richmond.[1]

  1. ^ a b Illinois Technology Transfer Center (2007). "T2 GIS Data". Illinois Department of Transportation. Retrieved November 8, 2007.
  2. ^ Carlson, Rich (March 15, 2006). "Routes 21 thru 40". Illinois State Highways Page. Retrieved March 22, 2006.[self-published source]