Upper Saucon Township is a township in Lehigh County, Pennsylvania. It is part of the Lehigh Valley metropolitan area, which had a population of 861,899 and was the 68th most populous metropolitan area in the U.S. as of the 2020 census. The township had a population of 14,808 as of the 2010 census. Upper Saucon Township is located 8.6 miles (13.8 km) southeast of Allentown, 52.5 miles (84.5 km) north of Philadelphia, and 89.5 miles (144.0 km) southwest of New York City.