Route 4 is a state highway in Bergen County and Passaic County, New Jersey, United States. The highway stretches 10.83 mi (17.43 km) from Route 20 (McLean Boulevard) in Paterson east to an interchange with Interstate 95 (I-95), U.S. Route 1/9 (US 1/9), US 46, and US 9W at the George Washington Bridge approach in Fort Lee.