Rocky Ridge, UT -- U.S. town in Utah Population (2000): 403 Housing Units (2000): 73 Land area (2000): 1.875392 sq. miles (4.857244 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 1.875392 sq. miles (4.857244 sq. km) FIPS code: 64590 Located within: Utah (UT), FIPS 49 Location: 39.924991 N, 111.826432 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Rocky Ridge, UT Rocky Ridge