Union Center, WI -- U.S. village in Wisconsin Population (2000): 214 Housing Units (2000): 99 Land area (2000): 0.801083 sq. miles (2.074796 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.801083 sq. miles (2.074796 sq. km) FIPS code: 81725 Located within: Wisconsin (WI), FIPS 55 Location: 43.684067 N, 90.263841 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Union Center, WI Union Center