Harper, IA -- U.S. city in Iowa Population (2000): 134 Housing Units (2000): 61 Land area (2000): 0.087944 sq. miles (0.227773 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.087944 sq. miles (0.227773 sq. km) FIPS code: 34545 Located within: Iowa (IA), FIPS 19 Location: 41.363351 N, 92.051379 W ZIP Codes (1990): 52231 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Harper, IA Harper