A total of approximately 1,000 acres were listed for sale in Illinois's Greene County recently, representing a combined around $11 million in Greene County farmsand rural real estate for sale. Greene County ranks 65th in Illinois for the total number of acres of land currently advertised for sale. Of all locations in Greene County with farms and rural real estate for sale, Roodhouse had the most land for sale. Greene County has a large agricultural economy, with 689 farms recorded in the county during the latest U.S. Census. Farming activities in Greene County generate annual revenues of $12 million, most of which is from crops. Greene County is Illinois's 48th largest county (546 square miles). It's located in the Western Illinois region of the state.