The total value of farmsand rural real estate for sale in Big Stone County recently on Land.com was approximately $9 million. This represents around 1,000 acres of land for sale in Big Stone County. Big Stone County ranks 74th in the state for the total number of acres of land currently advertised for sale. Of all locations in Big Stone County with land for sale, Ortonville had the most land for sale. Its economy is defined as agricultural, with 400 farms recorded in the county during the most recent U.S. Census. Farming activities in Big Stone County generate annual revenues of $8 million, most of which is from crops. Big Stone County is Minnesota's 67th largest county (528 square miles). It's located in the Southern Minnesota region of Minnesota.