The value of all land and rural real estate for sale in Minnesota's Big Stone County recently was almost $9 million, representing a total of 24 acres of land for sale in Big Stone County. Big Stone County ranks 71st in the North Star State for the total number of acres of land currently advertised for sale. Ortonville featured the most land for sale. Big Stone County has a large agricultural economy, with 400 farms recorded in the county during the latest 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 biggest county (528 square miles). It's located in the Southern Minnesota region of Minnesota.