Gilmore City, IA -- U.S. city in Iowa Population (2000): 556 Housing Units (2000): 272 Land area (2000): 1.239637 sq. miles (3.210645 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.239637 sq. miles (3.210645 sq. km) FIPS code: 30945 Located within: Iowa (IA), FIPS 19 Location: 42.730521 N, 94.442434 W ZIP Codes (1990): 50541 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gilmore City, IA Gilmore City