Cheyenne -- U.S. County in Colorado Population (2000): 2231 Housing Units (2000): 1105 Land area (2000): 1781.349215 sq. miles (4613.673090 sq. km) Water area (2000): 0.023177 sq. miles (0.060028 sq. km) Total area (2000): 1781.372392 sq. miles (4613.733118 sq. km) Located within: Colorado (CO), FIPS 08 Location: 38.816937 N, 102.523618 W Headwords: Cheyenne Cheyenne, CO Cheyenne County Cheyenne County, CO