Douglas County is in Central Illinois. Of the 102 counties in the Inland Empire, 267,023-acre Douglas County ranks 72nd by size. There is around 1,000 acres of residential land and property for sale in Illinois's Douglas County based on recent Land Network data. The combined market value of farms, hunting land and other rural land and acreage for sale here is around $3 million. The average price of residential acreage for sale in Douglas County was $306,975. 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.