Souderton, PA -- U.S. borough in Pennsylvania Population (2000): 6730 Housing Units (2000): 2720 Land area (2000): 1.118733 sq. miles (2.897506 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.118733 sq. miles (2.897506 sq. km) FIPS code: 71856 Located within: Pennsylvania (PA), FIPS 42 Location: 40.310215 N, 75.321682 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Souderton, PA Souderton