Oldham County is in Panhandle Texas. Of the 254 counties in the Lone Star State, Oldham County is 23rd in terms of its size (960,912 acres). A recent survey of Land Network data includes 1,000 acres of residential land and property for sale in Texas's Oldham County, which is valued at a combined $1 million. The average price of residential land for sale in Oldham County was $344,966. The economy here is principally agricultural. Browse all residential land and rural property for sale in Texas to find residential land and properties that suit your lifestyle needs, from existing residential homes and estates to land ready for future residential-property development.