A total of almost 1,000 acres were listed for sale in Sully County, South Dakota, recently; the combined value of all Sully County land and rural real estate for sale was almost $10 million. Sully County ranks 39th in the Coyote State for the total acreage of land currently advertised for sale. Pierre featured the most land for sale. Its economy is defined as agricultural, with 191 farms recorded in the county during the most recent U.S. Census. Farming activities in Sully County generate annual revenues of $7 million, most of which is from crops. Sully County is the 29th biggest county (1,070 square miles) in South Dakota. It's located in the Great Lakes South Dakota region of the state.