South Dakota is bordered to the north by North Dakota; to the south by Nebraska; to the east by Iowa and Minnesota; and to the west by Wyoming and Montana.
Южная Дакота делится на три региона: восточная Южная Дакота "(Eastriver)", западная Южная Дакота "(Westriver)" и Блэк-Хилс "(«Чёрные холмы»)".