Illinois Route 50 is a north–south state road in northeastern Illinois. It runs from the junction with U.S. Route 45 in West Kankakee north to U.S. Route 41 in Skokie. This is a distance of 66.49 miles (107.01 km). In Chicago and the suburbs it's known as Cicero Avenue. Before this, Cicero Avenue was previously known as 48th Avenue, owing to its City of Chicago address of 4800 West.