Land for sale in Greene County, Illinois, recently totaled nearly $11 million and approximately 1,000 acres. Greene County ranks 62nd out of 102 counties in Illinois for the combined amount of land currently advertised for sale. There were two properties listed as sold in Greene County through the Land Network Comparable Sales Program. This represented a total value of $5,541,485. Of all locations in Greene County with farms, hunting land and other rural land and acreage for sale, Carrollton 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 biggest county (546 square miles). It's located in the Western Illinois region of the state.