South Dakota Non-Hispanic American Indian and Alaska Native Alone Citizen Population By County in 2021 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2021, the Non-Hispanic American Indian & Alaska Native Alone citizen population for South Dakota was 17,485 and represented 2.03% of the total South Dakota citizen population.

Among all South Dakota counties, Oglala Lakota had the highest Non-Hispanic American Indian & Alaska Native Alone citizen population (12.66K), followed by Pennington (8.38K), and Todd (8.24K).

In terms of percentages, Oglala Lakota had the highest percentage of its citizen population being Non-Hispanic American Indian & Alaska Native Alone (91.47%), followed by Todd (89.77%), and Buffalo (78.23%).

The chart and table below shows the Non-Hispanic American Indian & Alaska Native Alone citizen population of each county and the percentage of each county's citizen population that were Non-Hispanic American Indian & Alaska Native Alone.

You can see similar information for other states and by state for the United States.

You can also see similar information for other ethnicities.

See this for other years:
South Dakota Non-Hispanic American Indian and Alaska Native Alone Citizen Population By County in 2021
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County Citizen Population % of County Citizen Population
Oglala Lakota 12655 91.47
Pennington 8375 7.80
Todd 8245 89.77
Dewey 4030 76.18
Roberts 3825 37.46
Minnehaha 3650 1.95
Corson 2810 70.96
Charles Mix 2790 29.98
Hughes 1980 11.14
Bennett 1805 53.32
Ziebach 1760 71.55
Jackson 1750 61.30
Lyman 1630 43.70
Buffalo 1545 78.23
Brown 1265 3.42
Mellette 1200 62.66
Tripp 895 16.10
Meade 775 2.66
Yankton 755 3.31
Moody 720 11.47
Brule 695 13.33
Walworth 620 11.64
Codington 595 2.14
Day 585 10.70
Fall River 585 8.49
Lawrence 540 2.14
Clay 470 3.26
Bon Homme 455 6.52
Davison 380 1.93
Marshall 310 7.32
Gregory 285 7.12
Lake 255 2.27
Custer 240 2.89
Brookings 220 0.67
Beadle 200 1.15
Butte 170 1.67
Union 170 1.05
Jones 150 16.48
Lincoln 115 0.19
Stanley 100 3.37
Perkins 85 2.87
Potter 75 2.89
Haakon 70 3.74
Aurora 65 2.54
Kingsbury 65 1.27
Harding 55 4.72
Edmunds 50 1.26
Spink 50 0.78
Hutchinson 45 0.61
Grant 40 0.55
Turner 35 0.41
Jerauld 30 1.70
Douglas 25 0.89
Hyde 20 1.45
McCook 20 0.36
Faulk 15 0.70
Miner 15 0.65
Sully 15 1.18
McPherson 10 0.45
Sanborn 10 0.43
Campbell 4 0.26
Clark 4 0.11
Deuel 4 0.09
Hamlin 4 0.07
Hand 4 0.13
Hanson 0 0.00