Hartley -- U.S. County in Texas Population (2000): 5537 Housing Units (2000): 1760 Land area (2000): 1462.250642 sq. miles (3787.211615 sq. km) Water area (2000): 0.948756 sq. miles (2.457266 sq. km) Total area (2000): 1463.199398 sq. miles (3789.668881 sq. km) Located within: Texas (TX), FIPS 48 Location: 35.871789 N, 102.553501 W Headwords: Hartley Hartley, TX Hartley County Hartley County, TX