South Dakota Non-Hispanic American Indian and Alaska Native Alone Citizen Population By County in 2015 (ACS-5Yrs)

Updated on March 28, 2026.

Based on the US Census Bureau's special tabulation from the ACS 5-year estimates, in 2015, the Non-Hispanic American Indian & Alaska Native Alone citizen population for South Dakota was 22,230 and represented 2.69% 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 (13.04K), followed by Pennington (8.16K), and Todd (7.40K).

In terms of percentages, Oglala Lakota had the highest percentage of its citizen population being Non-Hispanic American Indian & Alaska Native Alone (92.32%), followed by Dewey (75.61%), and Buffalo (74.76%).

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 2015
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County Citizen Population % of County Citizen Population
Oglala Lakota 13040 92.32
Pennington 8165 7.78
Todd 7400 74.60
Minnehaha 4475 2.60
Dewey 4215 75.61
Roberts 3570 34.78
Charles Mix 2850 30.86
Corson 2770 66.99
Ziebach 2000 70.80
Bennett 1770 51.45
Hughes 1770 10.22
Jackson 1570 49.14
Buffalo 1525 74.76
Lyman 1440 37.55
Brown 1260 3.39
Mellette 1110 53.37
Tripp 850 15.48
Lawrence 780 3.22
Moody 780 12.45
Codington 715 2.59
Davison 640 3.29
Brule 540 10.16
Day 510 9.13
Yankton 490 2.18
Walworth 465 8.81
Meade 460 1.76
Fall River 435 6.33
Marshall 420 9.29
Clay 400 2.94
Custer 340 4.08
Gregory 300 7.10
Bon Homme 295 4.24
Lincoln 270 0.55
Stanley 250 8.45
Beadle 220 1.34
Brookings 205 0.65
Haakon 160 7.67
Butte 150 1.46
McPherson 130 5.74
Grant 120 1.70
Hutchinson 110 1.54
Hyde 110 7.80
Douglas 85 2.89
Spink 85 1.31
Potter 75 3.27
Aurora 65 2.47
Hanson 65 1.92
Union 65 0.44
Campbell 55 3.57
Edmunds 55 1.38
McCook 55 0.99
Perkins 55 1.85
Clark 40 1.13
Faulk 40 1.70
Turner 40 0.49
Lake 30 0.25
Hamlin 25 0.42
Harding 25 1.89
Jones 25 3.21
Sanborn 10 0.43
Deuel 4 0.09
Hand 4 0.12
Jerauld 4 0.20
Kingsbury 4 0.08
Miner 4 0.18
Sully 4 0.28