Illinois Route 21

Illinois Route 21 marker
Illinois Route 21
Milwaukee Avenue
Riverside Drive
Map
IL 21 highlighted in red
Route information
Maintained by IDOT
Length28.13 mi[1] (45.27 km)
ExistedNovember 5, 1918[2]–present
Major junctions
South end IL 43 in Niles
Major intersections US 14 in Niles
US 45 in Prospect Heights
US 45 in Lincolnshire

I-94 Toll in Gurnee
North end US 41 in Gurnee
Location
CountryUnited States
StateIllinois
CountiesCook, Lake
Highway system
US 20 IL 22

Illinois Route 21 (IL 21) is an arterial north–south state highway in northeastern Illinois. It runs from Illinois Route 43 (Harlem Avenue) in Niles to U.S. Route 41 (Skokie Highway) north of Gurnee. Illinois 21 is 28.13 miles (45.27 km) long.[1]

Along most of its length, Illinois 21 is called Milwaukee Avenue. North of Gurnee, it is called Riverside Drive.

  1. ^ a b Illinois Technology Transfer Center. T2 GIS Data. Retrieved April 7, 2006. As documented in Wikipedia:WikiProject U.S. Roads/Lengths/Illinois.
  2. ^ Carlson, Rick. Illinois State Highways: Routes 21 through 40. Last updated March 15, 2006. Retrieved March 22, 2006.