Decatur County is in High Plains Kansas. Of the 105 counties in the Wheat State, Decatur County is 36th in terms of its size (894 square miles). Kansas's Decatur County has almost 1,000 acres of residential land for sale based on recent Land Network data. The combined market value of farms and ranches for sale here was $800,000. The average price of residential acreage for sale in Decatur County was $261,300. The economy here is mainly agricultural. Browse all residential land and rural property for sale in Kansas 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.