New Jersey State Route 21 runs north-south in Essex County. It goes from Newark Liberty International Airport to the Passiac/Essex County Line. NJ St Rt 21 passes through the following towns in Essex County. Newark Belleville Nutley NJ St Rt 21 is not multi-plexed in Essex County. NJ St Rt 21 intersects the following highways in Essex County. Interstate 78, at Newark. U.S. Rt. 1, at Newark. U.S. Rt. 9, at Newark. U.S. Rt. 22, at Newark. Interstate 280, at Newark. New Jersey State Route 7, at Belleville.
A BGS on EB I-280. SB NJ St Rt 21 south of I-280 in Newark. SB NJ St Rt 21 south of Downtown Newark. A BGS on SB NJ St Rt 21.
