DeWitt County is in Central Illinois. Of the 102 counties in the Land of Lincoln, 405-square-mile DeWitt County ranks 73rd by size. The total value of nearly 1,000 acres of residential land and property recently listed for sale in DeWitt County, Illinois, was almost $2 million. The average price of residential land for sale in DeWitt County was $429,725. Browse all residential land and rural property for sale in Illinois 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.