Massac County is in Southern Illinois. Of the 102 counties in the state, Massac County is 97th in terms of its size (241 square miles). Recent listings of residential land and property for sale in Massac County, Illinois, totals about 1,000 acres and a combined market value of around $2 million. The most common type of land for sale by combined acreage in Massac County is undeveloped land. The average price of residential acreage for sale in Massac County was $262,057. 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.