Land for sale in Big Stone County, Minnesota, recently totaled almost $10 million and nearly 1,000 acres. Big Stone County ranks 70th out of 87 counties in the state for the total number of acres of land currently advertised for sale. Among cities in Big Stone County with farms, hunting land and other rural land and acreage for sale, Ortonville featured the most land for sale. Agriculture and farming drives the Big Stone County economy, with 400 farms recorded in the county during the U.S. Census in 2012. Farming activities in Big Stone County generate annual revenues of $8 million, most of which is from crops. Big Stone County is the 67th largest county (528 square miles) in Minnesota. It's located in the Southern Minnesota region of the state.