Jefferson County is in Great Plains Country Oklahoma. Of the 77 counties in the Sooner State, 495,412-acre Jefferson County ranks 45th by size. Oklahoma's Jefferson County includes about 1,000 acres of residential land for sale based on recent Land Network data. The combined market value of farms, ranches, hunting land and other land for sale here was approximately $800,000. The average price of residential acreage for sale in Jefferson County was $387,500. The economy here is mainly agricultural. Browse all residential land and rural property for sale in Oklahoma 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.