U.S. Route 20 in Illinois

U.S. Route 20
Ulysses S. Grant Memorial Highway
US 20 highlighted in red
Route information
Maintained by IDOT and CDOT
Length	233.93 mi[1] (376.47 km)
Existed	1926–present
Major junctions
West end	US 20 in East Dubuque
Major intersections	I-39 / US 51 in Rockford I-90 Toll in Hampshire IL 390 Toll in Hanover Park I-355 in Addison I-290 / I-294 Toll in Elmhurst I-290 / IL 110 (CKC) in Westchester I-55 in Hodgkins I-294 Toll in Bridgeview I-94 in Chicago I-90 Toll / Chicago Skyway in Chicago
East end	US 12 / US 20 / US 41 in Chicago
Location
Country	United States
State	Illinois
Counties	Jo Daviess, Stephenson, Winnebago, Boone, McHenry, Kane, DuPage, Cook
Highway system
United States Numbered Highway System List Special Divided Illinois State Highway System Interstate US State Tollways Scenic
← IL 19 → IL 21

U.S. Route 20 (US 20) in the U.S. state of Illinois is a major arterial highway that runs from the Iowa state line at East Dubuque at the northwestern tip of Illinois to the Indiana state line at Chicago south of the Chicago Skyway, a distance of 233.93 miles (376.47 km).^[1] For its entire length, US 20 is designated as the General Ulysses S. Grant Highway, often abbreviated the U.S. Grant Memorial Highway. However, this name is only commonly used west of Elgin. US 20 bypasses the city of Elgin on a freeway known as the Elgin Bypass or Dr. Martin Luther King Jr. Memorial Highway.^[2] From Elgin to Melrose Park, US 20 follows Lake Street. It then follows Mannheim Road and, further south, La Grange Road. US 20 also follows 95th Street as it turns east through Chicago's southwestern suburbs. It ultimately leaves Illinois on Indianapolis Boulevard.