New Jersey State Route 31 is a north-south highway in South Central Warren County. It runs from U.S. Rt. 46, near Oxford, to the Warren/Hunterdon County Line, near Glen Garden. NJ St Rt 31 passes through the following towns in Warren County. Oxford Washington NJ St Rt 31 is not multi-plexed in Warren County. NJ St Rt 31 intersects the following highways in Warren County. U.S. Rt. 46, near Oxford. New Jersey State Route 57, at Washington.
A guide marker on EB I-80. A street sign in Oxford.
