YANKTON DAKOTA WESTERN DAKOTA - IHANKTONWAN Click for SANTEE DAKOTA or LAKOTA   Yankton Dakota Territory: Eastern South Dakota, Eastern North Dakota, and western Minnesota.   Portals .   Birdtail Sioux / Chankagha Otinta First Nation : part of whose membership is Yankton Dakota Virden, Manitoba WIKIPEDIA   Crow Creek Sioux Tribe : part of whose membership is Yankton Dakota Fort Thompson, South Dakota   Fort Peck Tribes : part of whose membership is Yankton Dakota Poplar, Montana   Spirit Lake Nation : part of whose membership is Yankton Dakota Fort Totten, North Dakota   Standing Rock Sioux Tribe: part of whose membership is Yankton Dakota Fort Yates, North Dakota   Yankton Sioux Tribe : part of whose membership is Yanktonton Dakota Wagner, South Dakota   Yankton Dakota Population United States (2010) - 14,000 Canada (2020) - 450 S I O U X ONEOTA