Rockvale, CO -- U.S. town in Colorado Population (2000): 426 Housing Units (2000): 191 Land area (2000): 0.957285 sq. miles (2.479357 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.957285 sq. miles (2.479357 sq. km) FIPS code: 64970 Located within: Colorado (CO), FIPS 08 Location: 38.368845 N, 105.164813 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Rockvale, CO Rockvale