Counties in South (SD) Aurora Beadle Bennett Bon Homme Brookings Brown Brule Buffalo Butte Campbell Charles Mix Clark Clay Codington Corson Custer Davison Day Deuel Dewey Douglas Edmunds Fall River Faulk Grant Gregory Haakon Hamlin Hand Hanson Harding Hughes Hutchinson Hyde Jackson Jerauld Jones Kingsbury Lake Lawrence Lincoln Lyman Marshall McCook McPherson Meade Mellette Miner Minnehaha Moody Pennington Perkins Potter Roberts Sanborn Shannon Spink Stanley Sully Todd Tripp Turner Union Walworth Yankton Ziebach