A combined nearly 1,000 acres were listed for sale in Greene County recently; the overall value of all Greene County land for sale was approximately $11 million. Greene County ranks 66th in the Inland Empire for the total acreage of land currently advertised for sale. Of all farms, hunting land and other rural land and acreage for sale in Greene County, Roodhouse featured the most land for sale. Its economy is defined as agricultural, with 689 farms recorded in the county during the most recent U.S. Census. Farming activities in Greene County generate annual revenues of $12 million, most of which is from crops. Greene County is the 48th biggest county (546 square miles) in Illinois. It's located in the Western Illinois region of Illinois.