Union Star, MO -- U.S. town in Missouri Population (2000): 433 Housing Units (2000): 199 Land area (2000): 0.258972 sq. miles (0.670734 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.258972 sq. miles (0.670734 sq. km) FIPS code: 75130 Located within: Missouri (MO), FIPS 29 Location: 39.980280 N, 94.599415 W ZIP Codes (1990): 64494 Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Union Star, MO Union Star