Gilcrest, CO -- U.S. town in Colorado Population (2000): 1162 Housing Units (2000): 346 Land area (2000): 0.744906 sq. miles (1.929297 sq. km) Water area (2000): 0.000000 sq. miles (0.000000 sq. km) Total area (2000): 0.744906 sq. miles (1.929297 sq. km) FIPS code: 29955 Located within: Colorado (CO), FIPS 08 Location: 40.283190 N, 104.778780 W ZIP Codes (1990): Note: some ZIP codes may be omitted esp. for suburbs. Headwords: Gilcrest, CO Gilcrest