Jersey County is in Southwest Illinois. Of the 102 counties in the Inland Empire, Jersey County ranks 80th in terms of size (377 square miles). Recent listings of residential land for sale in Illinois's Jersey County totals 1,000 acres and a combined market value of almost $9 million. The most common type of land for sale by combined acreage in Jersey County is house. The average price of residential acreage for sale in Jersey County was $507,805. 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.