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Illinois 21.svgnumber:21 (twenty-one)
State highways in Illinois:1 • 2 • 3 • 4 • 5 • 7 • 8 • 9 • 10 • 13 • 14 • 15 • 16 • 17 • 18 • 19 • 21 • 22 • 25 • 26 • 29 • 31 • 33 • 37 • 38 • 40 • 41
Illinois Route 21 
highway in Illinois
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Instance ofroad
Location Illinois
Highway system
  • Illinois State Highway System
Owned by
  • Illinois Department of Transportation
Maintained by
  • Illinois Department of Transportation
Inception
  • 5 November 1918
Length
  • 28.13 mi
42° 11′ 40.56″ N, 87° 55′ 49.8″ W
Authority control
Blue pencil.svg
Ruta de Illinois 21 (es); ইলিনয় রুট ২১ (bn); Illinois Route 21 (de); Illinois Route 21 (en); Illinois Lō͘-sòaⁿ 21 (nan) Highway im US-Bundesstaat Illinois (de); autoroute américaine de l'état de l'Illinois (fr); highway in Illinois (en); jalan di Amerika Serikat (id); כביש בארצות הברית (he); weg in Illinois, Verenigde Staten van Amerika (nl)
English: Illinois Route 21 runs through Cook County and Lake County. It was a traditional road from Chicago to Milwaukee, and overlays Milwaukee Avenue from Niles north.

Media in category "Illinois Route 21"

The following 4 files are in this category, out of 4 total.