Illinois Route 105

Illinois Route 105 (IL-105) is a highway in the U.S. state of Illinois. It is an eastwest highway that runs from Illinois Route 48 in Decatur to Interstate 72 near Monticello. Illinois 105 is 37.58 miles (60.48 km) long.[1]

Illinois Route 105
Route information
Maintained by IDOT
Length37.58 mi[1] (60.48 km)
Major junctions
West end IL 48 in Decatur
  US 36 / IL 121 in Decatur
East end I-72 in Monticello
CountiesMacon, Piatt
Highway system
IL 104IL 106

Route description

The state highway serves a corn-and-soybean-growing region in Macon County and Piatt County. Roads such as IL-105 carry corn and soybeans to the refineries of Decatur for the manufacture of commodities such as soybean oil and corn syrup.

Rural towns along Illinois Route 105 include Bement and Cerro Gordo. The highway also runs past the Bryant Cottage State Historic Site.


SBI Route 105 was what Illinois Route 104 is now from Meredosia to Quincy from 1924 thru 1937. In 1945, the number was reused on former Illinois Route 47 north of Decatur. This is the current routing for Illinois 105.[2]

Major Intersections

MaconDecatur0.00.0 IL 48 Taylorville
US 51 Bus. south Pana
West end of US 51 Business concurrency
US 51 Bus. north Bloomington
East end of US 51 Business concurrency
3.96.3 US 36 / IL 121 south Tuscola, Mattoon, SpringfieldWest end of IL 121 concurrency
4.06.4 IL 121 north LincolnEast end of IL 121 concurrency
Piatt14.723.7 IL 32 south LovingtonWest end of IL 32 concurrency
Cerro Gordo17.628.3 IL 32 north CiscoEast end of IL 32 concurrency
Monticello37.5860.48 I-72 Champaign, DecaturExit 166 (Interstate 72)
1.000 mi = 1.609 km; 1.000 km = 0.621 mi


  1. Illinois Technology Transfer Center (2006). "T2 GIS Data". Retrieved 2007-11-08.
  2. Carlson, Rich. Illinois Highways Page: Routes 101 thru 120. Last updated March 15, 2005. Retrieved April 28, 2006.
  3. Google (February 27, 2017). "Overview Map of IL 105" (Map). Google Maps. Google. Retrieved February 27, 2017.
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