Roads of the Mid-South & West > Highways of the State of Illinois > Double Number U.S. Federal Highways of Illinois > U.S. Federal Route 20, Illinois > U.S. Federal Route 20; Boone County, Illinois > Business U.S. Federal Route 20; Boone-Winnebago Counties, Illinois
Roads of the Mid-South & West > Highways of the State of Illinois > Double Number U.S. Federal Highways of Illinois > U.S. Federal Route 20, Illinois > U.S. Federal Route 20; Winnebago County, Illinois > Business U.S. Federal Route 20; Boone-Winnebago Counties, Illinois

Business U.S. Federal Route 20
Boone-Winnebago Counties

Business U.S. Federal Route 20 runs along a old alignment of U.S. Rt. 20 in Rockford and Belvidere. U.S. Rt. 20 was re-routed along a expressway on the southside of Rockford.
BUSN. U.S. Rt. 20 passes through the following towns in Winnebago-Boone Counties.
Rockford

Belvidere

BUSN. U.S. Rt. 20 is not multi-plexed in Winnebago-Boone Counties.
BUSN. U.S. Rt. 20 intersects the following highways in Winnebago-Boone Counties.
U.S. Rt. 20, near Rockford.

Illinois State Route 70, at Rockford.
Illinois State Route 2, at Rockford.

Illinois State Route 251, at Rockford.

Interstate 39, (Addams Tollway) at Rockford.
Interstate 90, (Addams Tollway) at Rockford.
U.S. Rt. 51, (Addams Tollway) at Rockford.
Illinois State Route 76, at Belvidere.

U.S. Rt. 20, at Belvidere.

The eastern end of BUSN U.S. Rt. 20 in Belvidere.

The eastern end marker.

EB BUSN U.S. Rt. 20 at Mc Kinley Road.

EB BUSN U.S. Rt. 20 north of State.

EB BUSN U.S. Rt. 20 east of I-39/90; U.S. Rt. 51.

A BGS on NB I-39/U.S. Rt. 20; WB I-90.

BGS on NB I-39/U.S. Rt. 51; WB I-90.

A BGS on WB I-90.

A BGS on SB I-39/U.S. Rt. 51; EB I-90.

A BGS on SB I-39/U.S. Rt. 51; EB I-90.

WB BUSN U.S. Rt. 20 crossing the Rock River.

WB BUSN U.S. Rt. 20 in Downtown Rockford.

BGS on SB IL St Rt 2 in Rockford.

EB BUSN U.S. Rt. 20 at Meridian Road.

A Winnebago County mile marker.

EB BUSN U.S. Rt. 20 at it's western start point.
6 April 2026