Gregory County is in Great Lakes South Dakota. Of the 66 counties in the Mount Rushmore State, Gregory County ranks 30th in terms of size (1,053 square miles). Recent Land Network data shows almost 4,000 acres of ranches for sale in South Dakota's Gregory County, which is valued at a combined $21 million. The average price of ranches for sale in Gregory County was $3 million. The county has a rural, farm-based economy. Common game species to be found on ranches for sale in Gregory County include whitetail deer, mule deer, deer, turkey and elk. For fishermen, the rivers and lakes on Gregory County ranches for sale are stocked with fish including bass, trout, pike, catfish, walleye, bluegill, sunfish and salmon. Browse all South Dakota ranches for sale on the Land Network to find the ranch that's right for your business or commercial needs, from the sprawling legacy ranch to unbelievable residential ranch for your second home, investment property or retirement nest egg.