West Union, IA -- U.S. city in Iowa Population (2000): 2549 Housing Units (2000): 1198 Land area (2000): 2.689514 sq. miles (6.965809 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 2.689514 sq. miles (6.965809 sq. km) FIPS code: 84765 Located within: Iowa (IA), FIPS 19 Location: 42.962035 N, 91.810055 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: West Union, IA West Union