US 41 highlighted in red | ||||
Route information | ||||
Maintained by IDOT and CDOT | ||||
Length | 64.81 mi[1] (104.30 km) | |||
Existed | November 11, 1926 | –present|||
Tourist routes | ![]() | |||
Major junctions | ||||
South end | ![]() ![]() ![]() | |||
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North end | ![]() ![]() ![]() | |||
Location | ||||
Country | United States | |||
State | Illinois | |||
Counties | Cook, Lake | |||
Highway system | ||||
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U.S. Route 41 (US 41) in the U.S. state of Illinois runs north from the Indiana border beneath the Chicago Skyway on Indianapolis Boulevard to the Wisconsin border north of the northern terminus of the Tri-State Tollway with Interstate 94. It is the only north–south U.S. Route to travel through a significant portion of the city of Chicago, carrying Lake Shore Drive through the central portion of the city along the lakefront. US 41 in Illinois is 64.81 miles (104.30 km) in length.[1]