U.S. Federal Route 20 runs east-west across the south-central portion of Boone County. This highway runs along the Interstate 90 corridor in the county. U.S. Rt. passes through the following towns in Boone County. Belvidere
Garden Prairie U.S. Rt. 20 is not multi-plexed in Boone County. U.S. Rt. 20 crosses the following highways in Boone County. Interstate 90, (Addams Tollway) near Cherry Valley. (NO INTERHCANGE) BUSN. U.S. Rt. 20, at Belvidere.
Branches of U.S. Rt. 20 in Boone County. EB U.S. Rt. 20 at the Boone/Winnebago County Line. EB U.S. Rt. 20 at Irene Road. EB U.S. Rt. 20 east of Irene Road. EB U.S. Rt. 20 west of Appleton Road. A BGS on Genoa Road.
