There was a combined nearly $4 million of land for sale in Kingsbury County recently on Land.com. The total size of all Kingsbury County farms and ranches for sale was around 1,000 acres. Kingsbury County ranks 31st in the Mount Rushmore State for the total number of acres of land currently advertised for sale. Lake Preston had the most land for sale. Agriculture and farming drives the Kingsbury County economy, with 518 farms recorded in the county during the U.S. Census in 2012. Farming activities in Kingsbury County generate annual revenues of $8 million, most of which is from crops. Kingsbury County is the 37th biggest county (863 square miles) in South Dakota. It's located in the Glacial Lakes & Prairies South Dakota region of South Dakota.