Roads of the Mid-South & West > Highways of the State of Illinois > Illinois State Route 1-50 > Illinois State Route 21 > Illinois State Route 21, Lake County

Illinois State Route 21
Lake County

Illinois State Route 21 runs north-south through the center of Lake County. The name that this highway carries for it's life it Milwaukee Ave.

IL St Rt 21 passes through the following towns in Lake County.
Buffalo Grove
Riverwoods
Lincolnshire
Vernon Hills
Libertyville

Gurnee


IL St Rt 21 is multi-plexed in Lake County.
U.S. Rt. 45, from the Lake/Cook County Line to Lincolshire.


IL St Rt 21 intersects the following highways in Lake County.
Illinois State Route 22, at Lincolnshire.

U.S. Rt. 45, at Lincolnshire.

Illinois State Route 60, at Vernon Hills.
Illinois State Route 176, at Libertyville.
Illinois State Route 137, at Libertyville.

Illinois State Route 120, at Gurnee.
Interstate 94, (Tri-State Tollway) at Gurnee.
Illinois State Route 132, at Gurnee.

Photo courtesy: Paul Dienhart

U.S. Rt. 41, at Gurnee.



NB IL St Rt 21 in Vernon Hills.

A BGS on WB I-94.

A junction marker on EB IL St Rt 137.

The northern end of IL 21 at U.S. Rt. 41 in Gurnee.

The northern end marker.

8 March 2019