U.S. Federal Route 41 runs north-south through Lake County. The entire lenghts of this highway in the county is multi-lane divided. U.S. Rt. 41 passes through the following towns in Lake County. Highland Park Lake Forest Lake Bluff
North Chicago Waukegan
U.S. Rt. 41 is multi-plexed in Lake County. Interstate 41, from Wadsworth to the Wisconsin/Illinois State Line. Interstate 94, from Wadsworth to the Wisconsin/Illinois State Line.