Riverside, WY -- U.S. town in Wyoming Population (2000): 59 Housing Units (2000): 45 Land area (2000): 0.261514 sq. miles (0.677318 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.261514 sq. miles (0.677318 sq. km) FIPS code: 66075 Located within: Wyoming (WY), FIPS 56 Location: 41.215243 N, 106.782961 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Riverside, WY Riverside