Tennant, IA -- U.S. city in Iowa Population (2000): 73 Housing Units (2000): 32 Land area (2000): 0.713515 sq. miles (1.847996 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.713515 sq. miles (1.847996 sq. km) FIPS code: 77430 Located within: Iowa (IA), FIPS 19 Location: 41.594246 N, 95.441976 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Tennant, IA Tennant