Gravity, IA -- U.S. city in Iowa Population (2000): 218 Housing Units (2000): 103 Land area (2000): 0.298808 sq. miles (0.773910 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.298808 sq. miles (0.773910 sq. km) FIPS code: 32520 Located within: Iowa (IA), FIPS 19 Location: 40.759096 N, 94.744221 W ZIP Codes (1990): 50848 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gravity, IA Gravity