The value of all farmsand rural real estate for sale in Minnesota's Big Stone County recently was $9 million, representing a combined 29 acres of land for sale in Big Stone County. Big Stone County ranks 72nd in Minnesota for the total number of acres of land currently advertised for sale. Of all land and rural real estate for sale in Big Stone County, Ortonville had 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 biggest county (528 square miles) in Minnesota. It's located in the Southern Minnesota region of Minnesota.