The total value of farmsand rural real estate for sale in Irwin County, Georgia, recently on Land.com was $6 million. This represents 1,000 acres of land for sale in Irwin County. Irwin County ranks 158th out of 159 counties in the state for the combined amount of land currently advertised for sale. Of all locations in Irwin County with land for sale, Ocilla had the most land for sale. Irwin County has a large agricultural economy, with 373 farms recorded in the county during the latest U.S. Census. Farming activities in Irwin County generate annual revenues of $2 million, most of which is from crops. Irwin County is the 72nd largest county (362 square miles) in Georgia. It's located in the Historic South Georgia region of the state.