A combined 1,000 acres were listed for sale in Greene County recently; the overall value of all Greene County farms, ranches, and rural real estate for sale was almost $7 million. Greene County ranks 80th in the state for the combined amount of land currently advertised for sale. Among cities in Greene County with land for sale, Jefferson had the most land for sale. Agriculture and farming drives the Greene County economy, with 780 farms recorded in the county during the U.S. Census in 2012. Farming activities in Greene County generate annual revenues of $35 million, most of which is from crops. Greene County is Iowa's 53rd largest county (571 square miles). It's located in the Central Iowa region of Iowa.