Saline County is in Southern Illinois. Of the 102 counties in the state, 386-square-mile Saline County ranks 77th by size. Recent listings of residential land for sale in Saline County, Illinois, totals roughly 1,000 acres and a combined market value of $2 million. The most common type of land for sale by combined acreage in Saline County is residential property. The average price of residential land for sale in Saline County was $113,417. 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.