Land for sale in South Dakota's Turner County recently totaled nearly $30 million and 2,000 acres. Turner County ranks 12th in the Mount Rushmore State for the total acreage of land currently advertised for sale. Of all farms, ranches, and rural real estate for sale in Turner County, Parker had the most land for sale. Agriculture and farming drives the Turner County economy, with 794 farms recorded in the county during the U.S. Census in 2012. Farming activities in Turner County generate annual revenues of $53 million, most of which is from crops. Turner County is South Dakota's 50th biggest county (617 square miles). It's located in the Southeast South Dakota region of the state.