 PA 532 was designated in 1928 to run from US 1 in Northeast Philadelphia to PA 32 in Yardley while PA 632 was designated on the route between Newtown and Washington Crossing.In 1946, PA 532 was rerouted to Washington Crossing, replacing PA 632, while the road between Newtown and Yardley became an extension of PA 332.The Newtown Bypass was built in 1977 and PA 532 was routed onto it in 1991.