Highway marker photo
Illinois 120
Illinois Highway Ends Logo Illinois 119   Illinois 121

Illinois State Route 120

Illinois 120 goes from Woodstock to Waukegan across McHenry and Lake Counties in northeast Illinois. This designation replaced Illinois 20 in McHenry and Lake Counties in the 1940s to avoid confusion with US 20. The previous Illinois 120 went from Mason City to White Heath over current Illinois 10 in the early 1930s.
 
Illinois 120: Woodstock (US 14) < 35 miles > Waukegan (Illinois 131)
Historic Route: Mason City (Illinois 24) < 64 miles > White Heath (Illinois 10)

Google Map of Illinois 120

 


Cities Served: Grayslake, Gurnee, McHenry, Waukegan, Woodstock
Counties Served: Lake, McHenry
Related Highway: Illinois 20
Multiplex: Illinois 31
Ending at Ill. 120: Illinois 59, Illinois 60, Illinois 134
Related Links: » Illinois Route 120 from Wikipedia
  » Rich Carlson's Illinois Highway Page 101-120
Scanned maps: » Map of Illinois 120 IN 1934



Current Route:

Cities Served:Grayslake, Gurnee, McHenry, Park City, Round Lake Beach, Woodstock
Counties Served:Lake, McHenry
  Eastern Terminus: Waukegan   at Illinois 131
      End Photographs
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Looking west down Belvidere Road
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Closeup of end sign
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View of the route 120/route 131 junction
Google Map   |
Tiger Map   |
USGS Aerial Imagery  

  Western Terminus: Woodstock   at US 14
      End Photographs
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Looking east from US 14
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Looking west to US 14
Google Map   |
Tiger Map   |
USGS Aerial Imagery  

  Multiplex Photographs:
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Ill. 31/Ill. 120: Looking northeast
Illinois 119 Illinois 121
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