US 14 in Niles US 45 in Prospect Heights US 45 in Lincolnshire I-94 Toll in Gurnee
North end
US 41 in Gurnee
Location
Country
United States
State
Illinois
Counties
Cook, Lake
Highway system
Illinois State Highway System
Interstate
US
State
Tollways
Scenic
← US 20
→ IL 22
Illinois Route 21 (IL 21) is an arterial north–south state highway in northeastern Illinois. It runs from Illinois Route 43 (Harlem Avenue) in Niles to U.S. Route 41 (Skokie Highway) north of Gurnee. Illinois 21 is 28.13 miles (45.27 km) long.[1]
Along most of its length, Illinois 21 is called Milwaukee Avenue. North of Gurnee, it is called Riverside Drive.
^ abIllinois Technology Transfer Center. T2 GIS Data. Retrieved April 7, 2006. As documented in Wikipedia:WikiProject U.S. Roads/Lengths/Illinois.
^Carlson, Rick. Illinois State Highways: Routes 21 through 40. Last updated March 15, 2006. Retrieved March 22, 2006.
IllinoisRoute21 (IL 21) is an arterial north–south state highway in northeastern Illinois. It runs from IllinoisRoute 43 (Harlem Avenue) in Niles to...
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IllinoisRoute 38 is an 88.86-mile-long (143.01 km) west–east state highway that runs across northern Illinois. It runs from U.S. Route 52 (US 52) in...
IllinoisRoute 120 (IL 120) is a major east–west state highway in northeastern Illinois. It runs from U.S. Route 14 near Woodstock to IllinoisRoute 131...
IllinoisRoute 25 (IL 25) is a state route in northeast Illinois. It runs north from U.S. Route 34 in Oswego to IllinoisRoute 62 (Algonquin Road) in Algonquin...
IllinoisRoute 84 (Route 84 or IL 84) is a long state highway that runs along the Mississippi River in northwestern Illinois. Illinois 84 runs from south...
IllinoisRoute 22, also known as Half Day Road for part of its length, is an east–west state highway in northeastern Illinois. It runs from U.S. Route...
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IllinoisRoute 17 (IL 17) is a rural, arterial east–west state highway that runs east from a former ferry crossing in New Boston along the banks of the...
IllinoisRoute 60 (IL 60) is a 17.22-mile-long (27.71 km) east–west state highway in Lake County, in northeastern Illinois. It connects the village of...
signage. It runs from IllinoisRoute 40 to IllinoisRoute 92 by way of Tampico. This is a distance of 13.06 miles (21.02 km). Illinois 172 is also a part...
IllinoisRoute 59 is a north–south state highway in northeastern Illinois. It runs south from IllinoisRoute 173 in Antioch to I-55 in Shorewood, spanning...
IllinoisRoute 26 (IL 26, Illinois 26) is a north–south state highway in central and north-central Illinois. It runs from IllinoisRoute 116 just north...
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The IllinoisRoutes are the highways in the State Highway System of the U.S. state of Illinois that are not simultaneously part of the Interstate Highway...
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IllinoisRoute 71 is a 66-mile-long (106 km) southwest-to-northeast state highway in north central Illinois. It runs from the end of Interstate 180 in...
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Global Information
IL 43 in Niles
US 14 in Niles
US 45 in Prospect Heights
I-94 Toll in Gurnee
US 41 in Gurnee
