Grand River, IA -- U.S. city in Iowa Population (2000): 225 Housing Units (2000): 123 Land area (2000): 0.208369 sq. miles (0.539673 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.208369 sq. miles (0.539673 sq. km) FIPS code: 32070 Located within: Iowa (IA), FIPS 19 Location: 40.818940 N, 93.962587 W ZIP Codes (1990): 50108 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Grand River, IA Grand River