Data / Rankings / Uninsured rate, under 65 (US model-based estimate) / Counties in South Dakota

Counties in South Dakota by uninsured rate, under 65 (US model-based estimate)

Jackson County had the highest uninsured rate, under 65 (US model-based estimate) of 66 counties in 2017, at 24.9%. Lincoln County had the lowest, at 6%. The median was 12% and the figure for South Dakota was 10.8%. Source: the U.S. Census Bureau.

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Highest24.9Jackson County
Lowest6Lincoln County
Median1266 counties
South Dakota10.8History

Map of counties, 2017

Aurora County: 15.5 %Beadle County: 13.5 %Bennett County: 21.8 %Bon Homme County: 11.1 %Brookings County: 8.9 %Brown County: 10.7 %Brule County: 18.1 %Buffalo County: 19.4 %Butte County: 11.2 %Campbell County: 11.4 %Charles Mix County: 17.1 %Clark County: 14.6 %Clay County: 10.5 %Codington County: 8.6 %Corson County: 21.7 %Custer County: 11.8 %Davison County: 8.4 %Day County: 14.5 %Deuel County: 9.7 %Dewey County: 19.9 %Douglas County: 13.5 %Edmunds County: 11.8 %Fall River County: 11 %Faulk County: 9.8 %Grant County: 10.3 %Gregory County: 15.1 %Haakon County: 13.2 %Hamlin County: 10.8 %Hand County: 11.3 %Hanson County: 11.1 %Harding County: 13 %Hughes County: 9.6 %Hutchinson County: 12.2 %Hyde County: 12.4 %Jackson County: 24.9 %Jerauld County: 12.3 %Jones County: 16.3 %Kingsbury County: 9.8 %Lake County: 7.8 %Lawrence County: 9.9 %Lincoln County: 6 %Lyman County: 18.7 %McCook County: 10.4 %McPherson County: 13.9 %Marshall County: 17.7 %Meade County: 10.1 %Mellette County: 23.1 %Miner County: 10 %Minnehaha County: 8.7 %Moody County: 15.6 %Oglala Lakota County: 16.8 %Pennington County: 11.7 %Perkins County: 16.1 %Potter County: 11.2 %Roberts County: 19.5 %Sanborn County: 12.6 %Spink County: 10.9 %Stanley County: 10.4 %Sully County: 12.5 %Todd County: 17.4 %Tripp County: 17.8 %Turner County: 9.7 %Union County: 7.8 %Walworth County: 13.3 %Yankton County: 9.3 %Ziebach County: 23.1 %
  • Under 9.8
  • 9.8 to 11
  • 11 to 12
  • 12 to 14
  • 14 to 18
  • 18 and over
%, 2017. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2017

Jackson County: 24.9 %Jackson County24.9Mellette County: 23.1 %Mellette County23.1Ziebach County: 23.1 %Ziebach County23.1Bennett County: 21.8 %Bennett County21.8Corson County: 21.7 %Corson County21.7Dewey County: 19.9 %Dewey County19.9Roberts County: 19.5 %Roberts County19.5Buffalo County: 19.4 %Buffalo County19.4Lyman County: 18.7 %Lyman County18.7Brule County: 18.1 %Brule County18.1Tripp County: 17.8 %Tripp County17.8Marshall County: 17.7 %Marshall County17.7Todd County: 17.4 %Todd County17.4Charles Mix County: 17.1 %Charles Mix County17.1Oglala Lakota County: 16.8 %Oglala Lakota County16.8Jones County: 16.3 %Jones County16.3Perkins County: 16.1 %Perkins County16.1Moody County: 15.6 %Moody County15.6Aurora County: 15.5 %Aurora County15.5Gregory County: 15.1 %Gregory County15.1Clark County: 14.6 %Clark County14.6Day County: 14.5 %Day County14.5McPherson County: 13.9 %McPherson County13.9Beadle County: 13.5 %Beadle County13.5Douglas County: 13.5 %Douglas County13.5Walworth County: 13.3 %Walworth County13.3Haakon County: 13.2 %Haakon County13.2Harding County: 13 %Harding County13Sanborn County: 12.6 %Sanborn County12.6Sully County: 12.5 %Sully County12.5Hyde County: 12.4 %Hyde County12.4Jerauld County: 12.3 %Jerauld County12.3Hutchinson County: 12.2 %Hutchinson County12.2Custer County: 11.8 %Custer County11.8Edmunds County: 11.8 %Edmunds County11.8Pennington County: 11.7 %Pennington County11.7Campbell County: 11.4 %Campbell County11.4Hand County: 11.3 %Hand County11.3Butte County: 11.2 %Butte County11.2Potter County: 11.2 %Potter County11.2Jackson County: 24.9 %Jackson County24.9Mellette County: 23.1 %Mellette County23.1Ziebach County: 23.1 %Ziebach County23.1Bennett County: 21.8 %Bennett County21.8Corson County: 21.7 %Corson County21.7Dewey County: 19.9 %Dewey County19.9Roberts County: 19.5 %Roberts County19.5Buffalo County: 19.4 %Buffalo County19.4Lyman County: 18.7 %Lyman County18.7Brule County: 18.1 %Brule County18.1Tripp County: 17.8 %Tripp County17.8Marshall County: 17.7 %Marshall County17.7Todd County: 17.4 %Todd County17.4Charles Mix County: 17.1 %Charles Mix County17.1Oglala Lakota County: 16.8 %Oglala Lakota County16.8Jones County: 16.3 %Jones County16.3Perkins County: 16.1 %Perkins County16.1Moody County: 15.6 %Moody County15.6Aurora County: 15.5 %Aurora County15.5Gregory County: 15.1 %Gregory County15.1Clark County: 14.6 %Clark County14.6Day County: 14.5 %Day County14.5McPherson County: 13.9 %McPherson County13.9Beadle County: 13.5 %Beadle County13.5Douglas County: 13.5 %Douglas County13.5Walworth County: 13.3 %Walworth County13.3Haakon County: 13.2 %Haakon County13.2Harding County: 13 %Harding County13Sanborn County: 12.6 %Sanborn County12.6Sully County: 12.5 %Sully County12.5Hyde County: 12.4 %Hyde County12.4Jerauld County: 12.3 %Jerauld County12.3Hutchinson County: 12.2 %Hutchinson County12.2Custer County: 11.8 %Custer County11.8Edmunds County: 11.8 %Edmunds County11.8Pennington County: 11.7 %Pennington County11.7Campbell County: 11.4 %Campbell County11.4Hand County: 11.3 %Hand County11.3Butte County: 11.2 %Butte County11.2Potter County: 11.2 %Potter County11.2
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2017 (%)Change on 2016
1Jackson County24.9+3.7 pts
2Mellette County23.1+4.3 pts
2Ziebach County23.1+4.9 pts
4Bennett County21.8+0.9 pts
5Corson County21.7+3 pts
6Dewey County19.9+1 pts
7Roberts County19.5+1.5 pts
8Buffalo County19.4+1.5 pts
9Lyman County18.7+1 pts
10Brule County18.1+2.7 pts
11Tripp County17.8+2.9 pts
12Marshall County17.7+1.3 pts
13Todd County17.4+0.5 pts
14Charles Mix County17.1+0.2 pts
15Oglala Lakota County16.8+1.3 pts
16Jones County16.3+0.7 pts
17Perkins County16.1+2.3 pts
18Moody County15.6+1 pts
19Aurora County15.5+2.8 pts
20Gregory County15.1-0.2 pts
21Clark County14.6+1.9 pts
22Day County14.5-0.6 pts
23McPherson County13.9+3.7 pts
24Beadle County13.5+0.5 pts
24Douglas County13.5+2.4 pts
26Walworth County13.3+0.8 pts
27Haakon County13.2+1 pts
28Harding County13+1.4 pts
29Sanborn County12.6+3.4 pts
30Sully County12.5+1.6 pts
31Hyde County12.4+3.1 pts
32Jerauld County12.3+3.2 pts
33Hutchinson County12.2+1.6 pts
34Custer County11.8+1.1 pts
34Edmunds County11.8+2.3 pts
36Pennington County11.7+1.3 pts
37Campbell County11.4+1.9 pts
38Hand County11.3+2.9 pts
39Butte County11.2-1 pts
39Potter County11.2+1.3 pts
41Bon Homme County11.1+0.4 pts
41Hanson County11.1+2.2 pts
43Fall River County11+0.8 pts
44Spink County10.9+0.8 pts
45Hamlin County10.8+1.5 pts
46Brown County10.7+1.4 pts
47Clay County10.5-1.5 pts
48McCook County10.4+0.7 pts
48Stanley County10.4+1.3 pts
50Grant County10.3+0.7 pts
51Meade County10.1-0.2 pts
52Miner County10+1.3 pts
53Lawrence County9.9+0.4 pts
54Faulk County9.8+1.7 pts
54Kingsbury County9.8+1.5 pts
56Deuel County9.7-0.8 pts
56Turner County9.7+0.6 pts
58Hughes County9.60 pts
59Yankton County9.3+0.3 pts
60Brookings County8.9+0.5 pts
61Minnehaha County8.7-1.1 pts
62Codington County8.6-0.4 pts
63Davison County8.4-0.3 pts
64Lake County7.8-0.5 pts
64Union County7.8+1.5 pts
66Lincoln County6+0.7 pts

Other periods

About this ranking

People under 65 without health insurance coverage of any kind, as a percentage of all people under 65. United States: Census Bureau Small Area Health Insurance Estimates (SAHIE) for states and counties, all races, both sexes and all income levels.

A model-based single-year estimate that combines the American Community Survey with administrative records and population estimates, so every county gets a figure. Covers states and counties only, because the SAHIE dataset files have no national row. The Census Bureau advises comparing years from 2008 on only; 2013 is the updated release. People 65 and over are left out because nearly all of them have Medicare.

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. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. 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). Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties (Counties in South Dakota by uninsured rate, under 65 (US model-based estimate), 2017) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in South Dakota by uninsured rate, under 65 (US model-based estimate), 2017. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-dakota-counties?period=2017. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Counties in South Dakota by uninsured rate, under 65 (US model-based estimate), 2017. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-dakota-counties?period=2017.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties, Counties in South Dakota by uninsured rate, under 65 (US model-based estimate), 2017 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/south-dakota-counties?period=2017 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2017,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in South Dakota by uninsured rate, under 65 (US model-based estimate), 2017}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-dakota-counties?period=2017. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties: Counties in South Dakota by uninsured rate, under 65 (US model-based estimate), 2017
PY  - 2026
DA  - 2026/08/06
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/south-dakota-counties?period=2017
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/south-dakota-counties?period=2017.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2017-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 65 (US model-based estimate)?

Jackson County, with 24.9% in 2017, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 65 (US model-based estimate)?

Lincoln County, with 6% in 2017.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 65, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 65 (US model-based estimate): other rankings

Counties in South Dakota: more rankings