Williamson County is in Southern Illinois. Of the 102 counties in the Land of Lincoln, Williamson County is 65th in terms of its size (444 square miles). Recent listings of recreational land and property for sale in Illinois's Williamson County totals around 2,000 acres and a combined market value of $7 million. The most common type of land for sale by combined acreage in Williamson County is undeveloped land. The average price of recreational acreage for sale in Williamson County was $1 million. Browse all recreational property for sale in Illinois to find the recreational tract that suits your lifestyle needs, from hunting and fishing properties for the outdoor enthusiast to undeveloped acreage ready for future residential-property development.