Decatur County is in West Tennessee. Of the 95 counties in the Volunteer State, Decatur County ranks 65th in terms of size (344 square miles). Decatur County, Tennessee, has almost 1,000 acres of residential land and property for sale based on recent Land Network data. The combined market value of land for sale here was about $12 million. The average price of residential land for sale in Decatur County was $383,460. Browse all residential land and rural property for sale in Tennessee 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.