There was a total of $35 million of land and rural real estate for sale in Charles Mix County recently on Land.com. The total acreage of all Charles Mix County farms, ranches, hunting land and other land for sale was approximately 4,000 acres. Charles Mix County ranks 17th in the Mount Rushmore State for the total acreage of land currently advertised for sale. Of all farms, ranches, hunting land and other land for sale in Charles Mix County, Platte had the most land for sale. Agriculture and farming drives the Charles Mix County economy, with 759 farms recorded in the county during the U.S. Census in 2012. Farming activities in Charles Mix County generate annual revenues of $41 million, the majority of which comes from livestock products. Charles Mix County is the 26th largest county (1,150 square miles) in South Dakota. It's located in the Great Lakes South Dakota region of South Dakota.