Data / Rankings / Uninsured rate, all ages (US) / Counties in South Dakota

Counties in South Dakota by uninsured rate, all ages (US), 2024

Oglala Lakota County had the highest uninsured rate, all ages (US) of 66 counties in 2024, at 44.6%. McPherson County had the lowest, at 1.9%. The median was 7.7% and the figure for South Dakota was 9%. Source: the U.S. Census Bureau.

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Highest44.6Oglala Lakota County
Lowest1.9McPherson County
Median7.766 counties
South Dakota9History

Map of counties, 2024

Aurora County: 5.2 %Beadle County: 7.4 %Bennett County: 27.7 %Bon Homme County: 5.2 %Brookings County: 5.1 %Brown County: 5.7 %Brule County: 6.8 %Buffalo County: 43 %Butte County: 11.5 %Campbell County: 4.8 %Charles Mix County: 17.1 %Clark County: 7 %Clay County: 9.1 %Codington County: 6.3 %Corson County: 17 %Custer County: 10.8 %Davison County: 8.1 %Day County: 8.5 %Deuel County: 6.9 %Dewey County: 21.2 %Douglas County: 16 %Edmunds County: 4.4 %Fall River County: 13.2 %Faulk County: 6.3 %Grant County: 7.8 %Gregory County: 8.3 %Haakon County: 6.7 %Hamlin County: 7.7 %Hand County: 5 %Hanson County: 9.8 %Harding County: 2.8 %Hughes County: 6.7 %Hutchinson County: 5.1 %Hyde County: 6.1 %Jackson County: 27.4 %Jerauld County: 3.4 %Jones County: 8.7 %Kingsbury County: 5.3 %Lake County: 4 %Lawrence County: 8.9 %Lincoln County: 4.1 %Lyman County: 21.4 %McCook County: 7.8 %McPherson County: 1.9 %Marshall County: 3.9 %Meade County: 9.4 %Mellette County: 25 %Miner County: 5.9 %Minnehaha County: 8.2 %Moody County: 11 %Oglala Lakota County: 44.6 %Pennington County: 10.2 %Perkins County: 10.7 %Potter County: 4.3 %Roberts County: 18.2 %Sanborn County: 5.3 %Spink County: 9.4 %Stanley County: 3.5 %Sully County: 6.6 %Todd County: 22.9 %Tripp County: 14.1 %Turner County: 7 %Union County: 5.1 %Walworth County: 10.6 %Yankton County: 5.6 %Ziebach County: 26 %
  • Under 5
  • 5 to 6.2
  • 6.2 to 7.7
  • 7.7 to 9.5
  • 9.5 to 17
  • 17 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2024

Oglala Lakota County: 44.6 %Oglala Lakota County44.6Buffalo County: 43 %Buffalo County43Bennett County: 27.7 %Bennett County27.7Jackson County: 27.4 %Jackson County27.4Ziebach County: 26 %Ziebach County26Mellette County: 25 %Mellette County25Todd County: 22.9 %Todd County22.9Lyman County: 21.4 %Lyman County21.4Dewey County: 21.2 %Dewey County21.2Roberts County: 18.2 %Roberts County18.2Charles Mix County: 17.1 %Charles Mix County17.1Corson County: 17 %Corson County17Douglas County: 16 %Douglas County16Tripp County: 14.1 %Tripp County14.1Fall River County: 13.2 %Fall River County13.2Butte County: 11.5 %Butte County11.5Moody County: 11 %Moody County11Custer County: 10.8 %Custer County10.8Perkins County: 10.7 %Perkins County10.7Walworth County: 10.6 %Walworth County10.6Pennington County: 10.2 %Pennington County10.2Hanson County: 9.8 %Hanson County9.8Meade County: 9.4 %Meade County9.4Spink County: 9.4 %Spink County9.4Clay County: 9.1 %Clay County9.1Lawrence County: 8.9 %Lawrence County8.9Jones County: 8.7 %Jones County8.7Day County: 8.5 %Day County8.5Gregory County: 8.3 %Gregory County8.3Minnehaha County: 8.2 %Minnehaha County8.2Davison County: 8.1 %Davison County8.1McCook County: 7.8 %McCook County7.8Grant County: 7.8 %Grant County7.8Hamlin County: 7.7 %Hamlin County7.7Beadle County: 7.4 %Beadle County7.4Clark County: 7 %Clark County7Turner County: 7 %Turner County7Deuel County: 6.9 %Deuel County6.9Brule County: 6.8 %Brule County6.8Haakon County: 6.7 %Haakon County6.7Oglala Lakota County: 44.6 %Oglala Lakota County44.6Buffalo County: 43 %Buffalo County43Bennett County: 27.7 %Bennett County27.7Jackson County: 27.4 %Jackson County27.4Ziebach County: 26 %Ziebach County26Mellette County: 25 %Mellette County25Todd County: 22.9 %Todd County22.9Lyman County: 21.4 %Lyman County21.4Dewey County: 21.2 %Dewey County21.2Roberts County: 18.2 %Roberts County18.2Charles Mix County: 17.1 %Charles Mix County17.1Corson County: 17 %Corson County17Douglas County: 16 %Douglas County16Tripp County: 14.1 %Tripp County14.1Fall River County: 13.2 %Fall River County13.2Butte County: 11.5 %Butte County11.5Moody County: 11 %Moody County11Custer County: 10.8 %Custer County10.8Perkins County: 10.7 %Perkins County10.7Walworth County: 10.6 %Walworth County10.6Pennington County: 10.2 %Pennington County10.2Hanson County: 9.8 %Hanson County9.8Meade County: 9.4 %Meade County9.4Spink County: 9.4 %Spink County9.4Clay County: 9.1 %Clay County9.1Lawrence County: 8.9 %Lawrence County8.9Jones County: 8.7 %Jones County8.7Day County: 8.5 %Day County8.5Gregory County: 8.3 %Gregory County8.3Minnehaha County: 8.2 %Minnehaha County8.2Davison County: 8.1 %Davison County8.1McCook County: 7.8 %McCook County7.8Grant County: 7.8 %Grant County7.8Hamlin County: 7.7 %Hamlin County7.7Beadle County: 7.4 %Beadle County7.4Clark County: 7 %Clark County7Turner County: 7 %Turner County7Deuel County: 6.9 %Deuel County6.9Brule County: 6.8 %Brule County6.8Haakon County: 6.7 %Haakon County6.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Oglala Lakota County44.6+1.1 pts
2Buffalo County43+0.1 pts
3Bennett County27.7-1.4 pts
4Jackson County27.4-1.9 pts
5Ziebach County260 pts
6Mellette County25-3.2 pts
7Todd County22.9-1 pts
8Lyman County21.4-0.3 pts
9Dewey County21.2-2.2 pts
10Roberts County18.2-1.7 pts
11Charles Mix County17.1-1 pts
12Corson County17-1.8 pts
13Douglas County16-2.8 pts
14Tripp County14.1+1.2 pts
15Fall River County13.2-1.8 pts
16Butte County11.5-4.2 pts
17Moody County11+1.7 pts
18Custer County10.8+0.7 pts
19Perkins County10.7+2.4 pts
20Walworth County10.6-0.1 pts
21Pennington County10.2-0.3 pts
22Hanson County9.8+1.2 pts
23Meade County9.4+0.1 pts
24Spink County9.4+1.5 pts
25Clay County9.1-0.2 pts
26Lawrence County8.9-2 pts
27Jones County8.7-2.4 pts
28Day County8.5+1 pts
29Gregory County8.3+0.4 pts
30Minnehaha County8.2+0.1 pts
31Davison County8.1+0.4 pts
32McCook County7.8-1.1 pts
33Grant County7.8-2.1 pts
34Hamlin County7.7-2.2 pts
35Beadle County7.4+1.5 pts
36Clark County7+0.1 pts
37Turner County7+0.3 pts
38Deuel County6.9-0.8 pts
39Brule County6.8-0.8 pts
40Haakon County6.7-3.9 pts
41Hughes County6.7-0.4 pts
42Sully County6.6-1.3 pts
43Faulk County6.3+2 pts
44Codington County6.3-0.4 pts
45Hyde County6.1-0.6 pts
46Miner County5.9-3.3 pts
47Brown County5.7-1.8 pts
48Yankton County5.6-0.7 pts
49Sanborn County5.3-1 pts
50Kingsbury County5.3-0.6 pts
51Bon Homme County5.2-0.5 pts
52Aurora County5.2-0.3 pts
53Union County5.1-0 pts
54Brookings County5.1+0.8 pts
55Hutchinson County5.1+0.9 pts
56Hand County5+0.8 pts
57Campbell County4.8+0.8 pts
58Edmunds County4.4+0.4 pts
59Potter County4.3-3.4 pts
60Lincoln County4.1+0.4 pts
61Lake County4+0.4 pts
62Marshall County3.9+0.5 pts
63Stanley County3.5-0.2 pts
64Jerauld County3.4-2.9 pts
65Harding County2.8-0.6 pts
66McPherson County1.9-3.4 pts

Other periods

About this ranking

People without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.

Citation styles

The publisher is the author. Invokely is named only as the place the figures were read, where a style asks for it.

APA 7

U.S. Census Bureau. (2026). American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in South Dakota by uninsured rate, all ages (US), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in South Dakota by uninsured rate, all ages (US), 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate/south-dakota-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Counties in South Dakota by uninsured rate, all ages (US), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate/south-dakota-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in South Dakota by uninsured rate, all ages (US), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate/south-dakota-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in South Dakota by uninsured rate, all ages (US), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/south-dakota-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in South Dakota by uninsured rate, all ages (US), 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate/south-dakota-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/south-dakota-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, all ages (US)?

Oglala Lakota County, with 44.6% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, all ages (US)?

McPherson County, with 1.9% in 2024.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, all ages (US): other rankings

Counties in South Dakota: more rankings