Throop, PA -- U.S. borough in Pennsylvania Population (2000): 4010 Housing Units (2000): 1813 Land area (2000): 5.035718 sq. miles (13.042449 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 5.035718 sq. miles (13.042449 sq. km) FIPS code: 76648 Located within: Pennsylvania (PA), FIPS 42 Location: 41.445536 N, 75.614494 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Throop, PA Throop