100 in United States (2016 W. Meya), decreasing. Ethnic population: 170,000 (2016 Lakota Language Consortium). Includes all ethnic Sioux. Total users in all countries: 290.
Minnesota: Upper Sioux, Lower Sioux, Prior Lake, Prairie Island, Minneapolis; Montana: Fort Peck reservation; Nebraska: Santee; North Dakota: Devils Lake, northern Standing Rock reservation, Sisseton-Lakota Traverse reservation; South Dakota: Crow Creek, Sisseton-Lakota Traverse and Yankton reservations, Flandreau.
Most youth prefer English [eng] or do not speak the language. Teaching programs at every level, preschool through university (Golla 2007). Few children (1998).
Latin script [Latn].