Palo Alto, PA -- U.S. borough in Pennsylvania Population (2000): 1052 Housing Units (2000): 478 Land area (2000): 1.056291 sq. miles (2.735782 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.056291 sq. miles (2.735782 sq. km) FIPS code: 57752 Located within: Pennsylvania (PA), FIPS 42 Location: 40.687881 N, 76.171194 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Palo Alto, PA Palo Alto