Located in Western Illinois, 882-square-mile Fulton County is one of the ten biggest counties in the state. The total value of 1,000 acres of residential land recently listed for sale in Fulton County, Illinois, was $4 million. The average price of residential land for sale in Fulton County was $231,175. 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.