Oldham -- U.S. County in Texas Population (2000): 2185 Housing Units (2000): 815 Land area (2000): 1500.630788 sq. miles (3886.615734 sq. km) Water area (2000): 0.786677 sq. miles (2.037484 sq. km) Total area (2000): 1501.417465 sq. miles (3888.653218 sq. km) Located within: Texas (TX), FIPS 48 Location: 35.380046 N, 102.558258 W Headwords: Oldham Oldham, TX Oldham County Oldham County, TX