Grand -- U.S. County in Colorado Population (2000): 12442 Housing Units (2000): 10894 Land area (2000): 1846.674737 sq. miles (4782.865409 sq. km) Water area (2000): 22.930219 sq. miles (59.388993 sq. km) Total area (2000): 1869.604956 sq. miles (4842.254402 sq. km) Located within: Colorado (CO), FIPS 08 Location: 40.087637 N, 106.070981 W Headwords: Grand Grand, CO Grand County Grand County, CO