Ralston, WY -- U.S. Census Designated Place in Wyoming Population (2000): 233 Housing Units (2000): 101 Land area (2000): 5.636426 sq. miles (14.598276 sq. km) Water area (2000): 0.002852 sq. miles (0.007386 sq. km) Total area (2000): 5.639278 sq. miles (14.605662 sq. km) FIPS code: 63465 Located within: Wyoming (WY), FIPS 56 Location: 44.714544 N, 108.875598 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Ralston, WY Ralston