Gillett Grove, IA -- U.S. city in Iowa Population (2000): 55 Housing Units (2000): 30 Land area (2000): 0.188611 sq. miles (0.488500 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.188611 sq. miles (0.488500 sq. km) FIPS code: 30810 Located within: Iowa (IA), FIPS 19 Location: 43.014514 N, 95.036576 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gillett Grove, IA Gillett Grove