Potter County ranks 56th out of 66 counties in the Mount Rushmore State for the total number of acres of land currently advertised for sale. Tolstoy had the most land for sale. Its economy is defined as agricultural, with 247 farms recorded in the county during the most recent U.S. Census. Farming activities in Potter County generate annual revenues of $5 million, most of which is from crops. Potter County is the 34th largest county (898 square miles) in South Dakota. It's located in the Great Lakes South Dakota region of the state.