The overall value of land and rural real estate for sale in South Dakota's Bennett County recently on Land.com was approximately $7 million. This represents almost 4,000 acres of farms and ranches for sale in Bennett County. Bennett County ranks 34th out of 66 counties in South Dakota for the combined amount of land currently advertised for sale. Martin featured the most land for sale. Its economy is defined as agricultural, with 219 farms recorded in the county during the most recent U.S. Census. Farming activities in Bennett County generate annual revenues of $5 million, the majority of which comes from livestock products. Bennett County is South Dakota's 23rd largest county (1,190 square miles). It's located in the Black Hills & Badlands South Dakota region of South Dakota.