There was a combined approximately $3 million of land and rural real estate for sale in Monona County recently on Land.com. The total of all Monona County land for sale was 1,000 acres. Monona County ranks 96th out of 99 counties in the Wrestling State for the total acreage of land currently advertised for sale. Among cities in Monona County with farms and ranches for sale, Onawa had the most land for sale. Its economy is defined as agricultural, with 538 farms recorded in the county during the most recent U.S. Census. Farming activities in Monona County generate annual revenues of $23 million, most of which is from crops. Monona County is the 16th biggest county (698 square miles) in Iowa. It's located in the Western Iowa region of the state.