Gilpin -- U.S. County in Colorado Population (2000): 4757 Housing Units (2000): 2929 Land area (2000): 149.868464 sq. miles (388.157523 sq. km) Water area (2000): 0.386506 sq. miles (1.001047 sq. km) Total area (2000): 150.254970 sq. miles (389.158570 sq. km) Located within: Colorado (CO), FIPS 08 Location: 39.841995 N, 105.495503 W Headwords: Gilpin Gilpin, CO Gilpin County Gilpin County, CO