Sioux is a Siouan language spoken by over 30,000 Sioux in the United States and Canada, making it the fifth most spoken indigenous language in the United States or Canada, behind Navajo, Cree, Inuit languages and Ojibwe.

Since 2019, "the language of the Great Sioux Nation, comprised of three dialects, Dakota, Lakota, and Nakota" is the official indigenous language of South Dakota.

More information: Wikipedia

Native speakers: 25,000 (2015)

Official language in: United States, Canada

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