Ranking of South Dakota Counties By Percentage of Population that are Non-Hispanic American Indian and Alaska Native in 2018

Based on the US Census Vintage data estimates, in 2018, among all South Dakota counties, Oglala Lakota County had the highest percentage of its population who identified their ethnicity as Non-Hispanic American Indian and Alaska Native (89.82%), followed by Todd County (83.99%), and Buffalo County (77.78%).

The chart below shows the top 10 counties, and the table below shows the ranking of all South Dakota counties.

You can see similar ranking information for other racial and ethnicity groups in the United States.

You can also see similar information for other states, and also the ranking of all counties in the United States.