Greene County is in Western Illinois. Of the 102 counties in the Land of Lincoln, Greene County is 48th in terms of its size (546 square miles). There is roughly 1,000 acres of residential land and property for sale in Illinois's Greene County based on recent Land Network data, making it the most common type of land for sale in Greene County. The combined market value of farmsand rural real estate for sale here is around $7 million. The average price of residential acreage for sale in Greene County was $523,385. The economy here is mainly agricultural. 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.