There was a total of nearly $6 million of land and rural real estate for sale in Monona County, Iowa, recently on Land.com. The total of all Monona County farms, ranches, hunting land and other land for sale was approximately 1,000 acres. Monona County ranks 91st out of 99 counties in the Wrestling State for the combined amount of land currently advertised for sale. Among cities in Monona County with land 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 Iowa's 16th largest county (698 square miles). It's located in the Western Iowa region of Iowa.