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



Historic Route:

Cities Served:
Counties Served:

 
The eastern terminus of Illinois 120 has not been photographed for this site. Any and all photos are welcome, along with descriptions.
Google Map   |
Tiger Map   |
USGS Aerial Imagery  
The western terminus of Illinois 120 has not been photographed for this site. Any and all photos are welcome, along with descriptions.
Google Map   |
Tiger Map   |
USGS Aerial Imagery  
Illinois 119 Illinois 121
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