South Dakota South Dakota State Government North and South Dakota: The word Dakota, of course, describes the Dakota people, but it also means friendly or allies. Capital: Pierre Largest Cities: Aberdeen, Brookings, Buffalo, Huron, Mitchell, Mobridge, Pine Ridge, Rapid City, Sioux Falls, Vermillion, Watertown, Wounded Knee Present Constitution Drafted: 1889 Entered Union: November 2, 1889 (40) Motto: “Under God, the people rule” State Flower: American Pasqueflower State Tree: Black Hills Spruce State Bird: Ring-necked Pheasant State Dog: Not Specified State Insect: Honeybee State Song: “Hail! South Dakota” Nickname: Mount Rushmore State, Coyote State