Byron, WY -- U.S. town in Wyoming Population (2000): 557 Housing Units (2000): 217 Land area (2000): 0.840415 sq. miles (2.176664 sq. km) Water area (2000): 0.053157 sq. miles (0.137675 sq. km) Total area (2000): 0.893572 sq. miles (2.314339 sq. km) FIPS code: 11700 Located within: Wyoming (WY), FIPS 56 Location: 44.796653 N, 108.505773 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Byron, WY Byron