Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS)

Oglala Lakota County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 66 counties in 2022, at 55.7%. Faulk County had the lowest, at 2.1%. The median was 9.7% and the figure for South Dakota was 11%. Source: the U.S. Census Bureau.

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Lowest2.1Faulk County
Median9.766 counties
South Dakota11History

Map of counties, 2022

Aurora County: 7.5 %Beadle County: 5.4 %Bennett County: 19.3 %Bon Homme County: 7.8 %Brookings County: 5.4 %Brown County: 8.9 %Brule County: 7 %Buffalo County: 51.4 %Butte County: 14.6 %Campbell County: 9.9 %Charles Mix County: 19.3 %Clark County: 11 %Clay County: 8.9 %Codington County: 9.5 %Corson County: 25.9 %Custer County: 13 %Davison County: 8.8 %Day County: 13.2 %Deuel County: 11.3 %Dewey County: 32 %Douglas County: 22.3 %Edmunds County: 10.1 %Fall River County: 22.2 %Faulk County: 2.1 %Grant County: 10.8 %Gregory County: 10.8 %Haakon County: 13.9 %Hamlin County: 7.9 %Hand County: 5.4 %Hanson County: 3.2 %Harding County: 2.3 %Hughes County: 4.5 %Hutchinson County: 8.5 %Hyde County: 5.2 %Jackson County: 28.6 %Jerauld County: 7.7 %Jones County: 16.8 %Kingsbury County: 5.7 %Lake County: 4.7 %Lawrence County: 12.1 %Lincoln County: 4.3 %Lyman County: 25.3 %McCook County: 11.5 %McPherson County: 13.2 %Marshall County: 7.6 %Meade County: 13 %Mellette County: 44 %Miner County: 15.3 %Minnehaha County: 9.6 %Moody County: 8.3 %Oglala Lakota County: 55.7 %Pennington County: 12 %Perkins County: 9.2 %Potter County: 5.9 %Roberts County: 23.7 %Sanborn County: 6.8 %Spink County: 9.3 %Stanley County: 9.2 %Sully County: 4.5 %Todd County: 42.2 %Tripp County: 14.3 %Turner County: 7 %Union County: 5.8 %Walworth County: 7.4 %Yankton County: 10.6 %Ziebach County: 40.9 %
  • Under 5.6
  • 5.6 to 7.9
  • 7.9 to 9.7
  • 9.7 to 13
  • 13 to 22
  • 22 and over
%, 2022. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2022

Oglala Lakota County: 55.7 %Oglala Lakota County55.7Buffalo County: 51.4 %Buffalo County51.4Mellette County: 44 %Mellette County44Todd County: 42.2 %Todd County42.2Ziebach County: 40.9 %Ziebach County40.9Dewey County: 32 %Dewey County32Jackson County: 28.6 %Jackson County28.6Corson County: 25.9 %Corson County25.9Lyman County: 25.3 %Lyman County25.3Roberts County: 23.7 %Roberts County23.7Douglas County: 22.3 %Douglas County22.3Fall River County: 22.2 %Fall River County22.2Bennett County: 19.3 %Bennett County19.3Charles Mix County: 19.3 %Charles Mix County19.3Jones County: 16.8 %Jones County16.8Miner County: 15.3 %Miner County15.3Butte County: 14.6 %Butte County14.6Tripp County: 14.3 %Tripp County14.3Haakon County: 13.9 %Haakon County13.9Day County: 13.2 %Day County13.2McPherson County: 13.2 %McPherson County13.2Custer County: 13 %Custer County13Meade County: 13 %Meade County13Lawrence County: 12.1 %Lawrence County12.1Pennington County: 12 %Pennington County12McCook County: 11.5 %McCook County11.5Deuel County: 11.3 %Deuel County11.3Clark County: 11 %Clark County11Gregory County: 10.8 %Gregory County10.8Grant County: 10.8 %Grant County10.8Yankton County: 10.6 %Yankton County10.6Edmunds County: 10.1 %Edmunds County10.1Campbell County: 9.9 %Campbell County9.9Minnehaha County: 9.6 %Minnehaha County9.6Codington County: 9.5 %Codington County9.5Spink County: 9.3 %Spink County9.3Stanley County: 9.2 %Stanley County9.2Perkins County: 9.2 %Perkins County9.2Brown County: 8.9 %Brown County8.9Clay County: 8.9 %Clay County8.9Oglala Lakota County: 55.7 %Oglala Lakota County55.7Buffalo County: 51.4 %Buffalo County51.4Mellette County: 44 %Mellette County44Todd County: 42.2 %Todd County42.2Ziebach County: 40.9 %Ziebach County40.9Dewey County: 32 %Dewey County32Jackson County: 28.6 %Jackson County28.6Corson County: 25.9 %Corson County25.9Lyman County: 25.3 %Lyman County25.3Roberts County: 23.7 %Roberts County23.7Douglas County: 22.3 %Douglas County22.3Fall River County: 22.2 %Fall River County22.2Bennett County: 19.3 %Bennett County19.3Charles Mix County: 19.3 %Charles Mix County19.3Jones County: 16.8 %Jones County16.8Miner County: 15.3 %Miner County15.3Butte County: 14.6 %Butte County14.6Tripp County: 14.3 %Tripp County14.3Haakon County: 13.9 %Haakon County13.9Day County: 13.2 %Day County13.2McPherson County: 13.2 %McPherson County13.2Custer County: 13 %Custer County13Meade County: 13 %Meade County13Lawrence County: 12.1 %Lawrence County12.1Pennington County: 12 %Pennington County12McCook County: 11.5 %McCook County11.5Deuel County: 11.3 %Deuel County11.3Clark County: 11 %Clark County11Gregory County: 10.8 %Gregory County10.8Grant County: 10.8 %Grant County10.8Yankton County: 10.6 %Yankton County10.6Edmunds County: 10.1 %Edmunds County10.1Campbell County: 9.9 %Campbell County9.9Minnehaha County: 9.6 %Minnehaha County9.6Codington County: 9.5 %Codington County9.5Spink County: 9.3 %Spink County9.3Stanley County: 9.2 %Stanley County9.2Perkins County: 9.2 %Perkins County9.2Brown County: 8.9 %Brown County8.9Clay County: 8.9 %Clay County8.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2022 (%)Change on 2021
1Oglala Lakota County55.7+0.3 pts
2Buffalo County51.4-0.4 pts
3Mellette County44-0.8 pts
4Todd County42.2+1.7 pts
5Ziebach County40.90 pts
6Dewey County32-1.3 pts
7Jackson County28.6+0.6 pts
8Corson County25.9-6.5 pts
9Lyman County25.3+2.7 pts
10Roberts County23.7-0.6 pts
11Douglas County22.3+5.4 pts
12Fall River County22.2+1.8 pts
13Bennett County19.3-5.6 pts
14Charles Mix County19.3-2.1 pts
15Jones County16.8+3 pts
16Miner County15.3+1.9 pts
17Butte County14.6+0.1 pts
18Tripp County14.3+1.1 pts
19Haakon County13.9-0.7 pts
20Day County13.2-0.7 pts
21McPherson County13.2-1.1 pts
22Custer County13+0.5 pts
23Meade County13+0.5 pts
24Lawrence County12.1+0.3 pts
25Pennington County12-0.1 pts
26McCook County11.5+0.8 pts
27Deuel County11.3+0.8 pts
28Clark County11+0.5 pts
29Gregory County10.8-0.6 pts
30Grant County10.8-0.7 pts
31Yankton County10.60 pts
32Edmunds County10.1-0.9 pts
33Campbell County9.9+0.8 pts
34Minnehaha County9.6+0.1 pts
35Codington County9.5+1 pts
36Spink County9.3-0.1 pts
37Stanley County9.2+1 pts
38Perkins County9.2-0.2 pts
39Brown County8.9-1.6 pts
40Clay County8.9+2.8 pts
41Davison County8.8+0.7 pts
42Hutchinson County8.5+1.4 pts
43Moody County8.3-1.2 pts
44Hamlin County7.9+0.3 pts
45Bon Homme County7.8-1.9 pts
46Jerauld County7.7-1.2 pts
47Marshall County7.6-1.2 pts
48Aurora County7.5-3.2 pts
49Walworth County7.4-2.6 pts
50Turner County7-1.6 pts
51Brule County7+1.7 pts
52Sanborn County6.8-3.7 pts
53Potter County5.9+1.9 pts
54Union County5.8-2.1 pts
55Kingsbury County5.7-0.8 pts
56Hand County5.4+2.6 pts
57Beadle County5.4+0.7 pts
58Brookings County5.40 pts
59Hyde County5.2+1 pts
60Lake County4.7+0.4 pts
61Hughes County4.5-1.2 pts
62Sully County4.5-1.3 pts
63Lincoln County4.3+0.3 pts
64Hanson County3.2-1 pts
65Harding County2.3-6.9 pts
66Faulk County2.1-1.3 pts

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. 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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS), 2022) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS), 2022. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-dakota-counties?period=2022. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS), 2022. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-dakota-counties?period=2022.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS), 2022 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-dakota-counties?period=2022 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2022,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS), 2022}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-dakota-counties?period=2022. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS), 2022
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-dakota-counties?period=2022
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/south-dakota-counties?period=2022.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2022/table-based-SF/data/5YRData/acsdt5y2022-b27010.dat. Retrieved 2026-10-12.
ER  - 
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Rank Counties in South Dakota by uninsured rate, ages 35 to 64 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, ages 35 to 64 (US, ACS)?

Oglala Lakota County, with 55.7% in 2022, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

Faulk County, with 2.1% in 2022.

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 aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

Counties in South Dakota: more rankings