Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Perkins County is a county located in the U.S. state of South Dakota. As of the 2010 census, the population was 2,982. It's county seat is Bison. It is, in area, the second largest county in South Dakota, its size being exceeded only by Meade County.The county is divided into forty-nine townships: Ada, Anderson, Antelope, Barrett, Beck, Bison, Brushy, Burdick, Cash, Castle Butte, Chance, Chaudoin, Clark, De Witt, Duell, Englewood, Flat Creek, Foster, Fredlund, Glendo, Grand River, Hall, Highland, Horse Creek, Liberty, Lincoln, Lodgepole, Lone Tree, Maltby, Marshfield, Martin, Meadow, Moreau, Plateau, Rainbow, Rockford, Scotch Cap, Sidney, Strool, Trail, Vail, Vickers, Viking, Vrooman, Wells, White Butte, White Hill, Wilson, and Wyandotte; and eight areas of unorganized territory: Duck Creek, East Perkins, Independence, Pleasant Valley, South Perkins, Southwest Perkins, West Central Perkins, and West Perkins.