A total of 2,000 acres were listed for sale in Tripp County, South Dakota, recently, representing a combined $13 million in Tripp County land for sale. Tripp County ranks 31st in the Mount Rushmore State for the total acreage of land currently advertised for sale. Winner had the most land for sale. Agriculture and farming drives the Tripp County economy, with 629 farms recorded in the county during the U.S. Census in 2012. Farming activities in Tripp County generate annual revenues of $15 million, the majority of which comes from livestock products. Tripp County is South Dakota's 15th biggest county (1,617 square miles). It's located in the Great Lakes South Dakota region of the state.