Land for sale in Minnesota's Watonwan County recently totaled around $3 million and nearly 1,000 acres. Watonwan County ranks 81st out of 87 counties in Minnesota for the total acreage of land currently advertised for sale. Of all locations in Watonwan County with farms, rural land, hunting land and other land for sale, Saint James had the most land for sale. Its economy is defined as agricultural, with 503 farms recorded in the county during the most recent U.S. Census. Farming activities in Watonwan County generate annual revenues of $9 million, most of which is from crops. Watonwan County is the 78th largest county (439 square miles) in Minnesota. It's located in the Southern Minnesota region of the state.