Riverton, UT -- U.S. city in Utah Population (2000): 25011 Housing Units (2000): 6555 Land area (2000): 12.570503 sq. miles (32.557452 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 12.570503 sq. miles (32.557452 sq. km) FIPS code: 64340 Located within: Utah (UT), FIPS 49 Location: 40.520585 N, 111.955271 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Riverton, UT Riverton