Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in South Dakota

Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate)

Bennett County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 66 counties in 2016, at 28.4%. Lincoln County had the lowest, at 6.6%. The median was 12.4% and the figure for South Dakota was 12.7%. Source: the U.S. Census Bureau.

Keep it in a collection in your library.
Highest28.4Bennett County
Lowest6.6Lincoln County
Median12.466 counties
South Dakota12.7History

Map of counties, 2016

Aurora County: 14.8 %Beadle County: 16.1 %Bennett County: 28.4 %Bon Homme County: 12.5 %Brookings County: 9.8 %Brown County: 11.4 %Brule County: 18.4 %Buffalo County: 26.3 %Butte County: 15 %Campbell County: 10.2 %Charles Mix County: 21.4 %Clark County: 14.6 %Clay County: 13.9 %Codington County: 11.2 %Corson County: 26 %Custer County: 11.8 %Davison County: 10.6 %Day County: 17.5 %Deuel County: 12.1 %Dewey County: 26 %Douglas County: 12.6 %Edmunds County: 10.9 %Fall River County: 12 %Faulk County: 9.3 %Grant County: 11.2 %Gregory County: 17.9 %Haakon County: 13.4 %Hamlin County: 11.7 %Hand County: 9.4 %Hanson County: 10.9 %Harding County: 13.3 %Hughes County: 11.4 %Hutchinson County: 12.4 %Hyde County: 10.4 %Jackson County: 28.1 %Jerauld County: 10.2 %Jones County: 17.6 %Kingsbury County: 9.4 %Lake County: 9.8 %Lawrence County: 11 %Lincoln County: 6.6 %Lyman County: 22.1 %McCook County: 11.4 %McPherson County: 12.2 %Marshall County: 18.3 %Meade County: 12.6 %Mellette County: 25.7 %Miner County: 10 %Minnehaha County: 12.4 %Moody County: 17.3 %Oglala Lakota County: 22.3 %Pennington County: 12.8 %Perkins County: 15.4 %Potter County: 11.3 %Roberts County: 22 %Sanborn County: 10.6 %Spink County: 11.8 %Stanley County: 11 %Sully County: 12.2 %Todd County: 25.2 %Tripp County: 17.9 %Turner County: 10.7 %Union County: 7.4 %Walworth County: 15.3 %Yankton County: 10.8 %Ziebach County: 24.5 %
  • Under 11
  • 11 to 12
  • 12 to 15
  • 15 to 22
  • 22 and over
%, 2016. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2016

Bennett County: 28.4 %Bennett County28.4Jackson County: 28.1 %Jackson County28.1Buffalo County: 26.3 %Buffalo County26.3Corson County: 26 %Corson County26Dewey County: 26 %Dewey County26Mellette County: 25.7 %Mellette County25.7Todd County: 25.2 %Todd County25.2Ziebach County: 24.5 %Ziebach County24.5Oglala Lakota County: 22.3 %Oglala Lakota County22.3Lyman County: 22.1 %Lyman County22.1Roberts County: 22 %Roberts County22Charles Mix County: 21.4 %Charles Mix County21.4Brule County: 18.4 %Brule County18.4Marshall County: 18.3 %Marshall County18.3Gregory County: 17.9 %Gregory County17.9Tripp County: 17.9 %Tripp County17.9Jones County: 17.6 %Jones County17.6Day County: 17.5 %Day County17.5Moody County: 17.3 %Moody County17.3Beadle County: 16.1 %Beadle County16.1Perkins County: 15.4 %Perkins County15.4Walworth County: 15.3 %Walworth County15.3Butte County: 15 %Butte County15Aurora County: 14.8 %Aurora County14.8Clark County: 14.6 %Clark County14.6Clay County: 13.9 %Clay County13.9Haakon County: 13.4 %Haakon County13.4Harding County: 13.3 %Harding County13.3Pennington County: 12.8 %Pennington County12.8Douglas County: 12.6 %Douglas County12.6Meade County: 12.6 %Meade County12.6Bon Homme County: 12.5 %Bon Homme County12.5Hutchinson County: 12.4 %Hutchinson County12.4Minnehaha County: 12.4 %Minnehaha County12.4McPherson County: 12.2 %McPherson County12.2Sully County: 12.2 %Sully County12.2Deuel County: 12.1 %Deuel County12.1Fall River County: 12 %Fall River County12Custer County: 11.8 %Custer County11.8Spink County: 11.8 %Spink County11.8Bennett County: 28.4 %Bennett County28.4Jackson County: 28.1 %Jackson County28.1Buffalo County: 26.3 %Buffalo County26.3Corson County: 26 %Corson County26Dewey County: 26 %Dewey County26Mellette County: 25.7 %Mellette County25.7Todd County: 25.2 %Todd County25.2Ziebach County: 24.5 %Ziebach County24.5Oglala Lakota County: 22.3 %Oglala Lakota County22.3Lyman County: 22.1 %Lyman County22.1Roberts County: 22 %Roberts County22Charles Mix County: 21.4 %Charles Mix County21.4Brule County: 18.4 %Brule County18.4Marshall County: 18.3 %Marshall County18.3Gregory County: 17.9 %Gregory County17.9Tripp County: 17.9 %Tripp County17.9Jones County: 17.6 %Jones County17.6Day County: 17.5 %Day County17.5Moody County: 17.3 %Moody County17.3Beadle County: 16.1 %Beadle County16.1Perkins County: 15.4 %Perkins County15.4Walworth County: 15.3 %Walworth County15.3Butte County: 15 %Butte County15Aurora County: 14.8 %Aurora County14.8Clark County: 14.6 %Clark County14.6Clay County: 13.9 %Clay County13.9Haakon County: 13.4 %Haakon County13.4Harding County: 13.3 %Harding County13.3Pennington County: 12.8 %Pennington County12.8Douglas County: 12.6 %Douglas County12.6Meade County: 12.6 %Meade County12.6Bon Homme County: 12.5 %Bon Homme County12.5Hutchinson County: 12.4 %Hutchinson County12.4Minnehaha County: 12.4 %Minnehaha County12.4McPherson County: 12.2 %McPherson County12.2Sully County: 12.2 %Sully County12.2Deuel County: 12.1 %Deuel County12.1Fall River County: 12 %Fall River County12Custer County: 11.8 %Custer County11.8Spink County: 11.8 %Spink County11.8
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2016 (%)Change on 2015
1Bennett County28.4-1.3 pts
2Jackson County28.1-0.2 pts
3Buffalo County26.3-3.7 pts
4Corson County26-0.2 pts
4Dewey County26-3.9 pts
6Mellette County25.7+2.6 pts
7Todd County25.2-1.1 pts
8Ziebach County24.5+0.3 pts
9Oglala Lakota County22.3-3.5 pts
10Lyman County22.10 pts
11Roberts County22+0.4 pts
12Charles Mix County21.4-2.5 pts
13Brule County18.4-2 pts
14Marshall County18.3-0.3 pts
15Gregory County17.9-1 pts
15Tripp County17.9-0.9 pts
17Jones County17.6-0.8 pts
18Day County17.5-1 pts
19Moody County17.3+1.1 pts
20Beadle County16.1-1.7 pts
21Perkins County15.4-0.2 pts
22Walworth County15.3-1.8 pts
23Butte County15-1.7 pts
24Aurora County14.8-1.3 pts
25Clark County14.6-0.3 pts
26Clay County13.9+0.8 pts
27Haakon County13.40 pts
28Harding County13.3-0.6 pts
29Pennington County12.8-2.8 pts
30Douglas County12.6-1.4 pts
30Meade County12.6-0.6 pts
32Bon Homme County12.5-1.4 pts
33Hutchinson County12.4-0.4 pts
33Minnehaha County12.4-0.1 pts
35McPherson County12.2-2.4 pts
35Sully County12.2-2.4 pts
37Deuel County12.1-0.7 pts
38Fall River County12-2 pts
39Custer County11.8-2 pts
39Spink County11.8-1.5 pts
41Hamlin County11.7-1.5 pts
42Brown County11.4-0.5 pts
42Hughes County11.4-1.3 pts
42McCook County11.4-0.1 pts
45Potter County11.3-1.5 pts
46Codington County11.2-1 pts
46Grant County11.2-1.1 pts
48Lawrence County11-2.4 pts
48Stanley County11-2.6 pts
50Edmunds County10.9-1.1 pts
50Hanson County10.9-1.9 pts
52Yankton County10.8-1.2 pts
53Turner County10.7-1.2 pts
54Davison County10.6-1.4 pts
54Sanborn County10.6-2.7 pts
56Hyde County10.4-3.2 pts
57Campbell County10.2-1.5 pts
57Jerauld County10.2-2.1 pts
59Miner County10-0.5 pts
60Brookings County9.8-2.4 pts
60Lake County9.8-0.8 pts
62Hand County9.4-1.6 pts
62Kingsbury County9.4-0.3 pts
64Faulk County9.3-0.4 pts
65Union County7.4-0.4 pts
66Lincoln County6.6-0.3 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. 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. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-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, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate), 2016) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate), 2016. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-dakota-counties?period=2016. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate), 2016. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-dakota-counties?period=2016.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate), 2016 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-dakota-counties?period=2016 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2016,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate), 2016}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-dakota-counties?period=2016. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate), 2016
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-2016-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-dakota-counties?period=2016
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/south-dakota-counties?period=2016.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2016-csv.zip. Retrieved 2026-10-12.
ER  -
Embed this chart

Paste this code into a web page or a blog post. The chart shows the latest figures as they are published, with the source and a link back to this page.

Sites that read oEmbed links, such as WordPress, can show the chart when you paste the link to this page.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

Rank Counties in South Dakota by uninsured rate, ages 18 to 64 (US model-based estimate) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_18_64","level":"province","within":"South Dakota","limit":10}
GET https://invokely.ai/api/v1/rank?indicator=uninsured_rate_18_64&level=province&within=South%20Dakota&limit=10

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Bennett County, with 28.4% in 2016, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Lincoln County, with 6.6% in 2016.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in South Dakota: more rankings