Teller -- U.S. County in Colorado Population (2000): 20555 Housing Units (2000): 10362 Land area (2000): 557.062542 sq. miles (1442.785299 sq. km) Water area (2000): 1.892872 sq. miles (4.902515 sq. km) Total area (2000): 558.955414 sq. miles (1447.687814 sq. km) Located within: Colorado (CO), FIPS 08 Location: 38.912363 N, 105.156719 W Headwords: Teller Teller, CO Teller County Teller County, CO