Data / Rankings / Uninsured rate, under 19 (US model-based estimate) / Counties in South Dakota

Counties in South Dakota by uninsured rate, under 19 (US model-based estimate)

Brule County had the highest uninsured rate, under 19 (US model-based estimate) of 66 counties in 2018, at 11.3%. Lincoln County had the lowest, at 3.5%. The median was 7.5% and the figure for South Dakota was 5.9%. Source: the U.S. Census Bureau.

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Highest11.3Brule County
Lowest3.5Lincoln County
Median7.566 counties
South Dakota5.9History

Map of counties, 2018

Aurora County: 11.1 %Beadle County: 8 %Bennett County: 8.3 %Bon Homme County: 7.1 %Brookings County: 4.7 %Brown County: 5.5 %Brule County: 11.3 %Buffalo County: 5.3 %Butte County: 6.8 %Campbell County: 9.8 %Charles Mix County: 9.7 %Clark County: 8.7 %Clay County: 4.9 %Codington County: 4.5 %Corson County: 9.6 %Custer County: 7.5 %Davison County: 5.2 %Day County: 9.9 %Deuel County: 7.5 %Dewey County: 7.5 %Douglas County: 11.1 %Edmunds County: 8.1 %Fall River County: 5.6 %Faulk County: 7.2 %Grant County: 6.9 %Gregory County: 9.8 %Haakon County: 8.8 %Hamlin County: 6.2 %Hand County: 10 %Hanson County: 7.1 %Harding County: 7.2 %Hughes County: 5.3 %Hutchinson County: 8 %Hyde County: 9 %Jackson County: 11.1 %Jerauld County: 10.8 %Jones County: 9.6 %Kingsbury County: 7.4 %Lake County: 4.9 %Lawrence County: 4.9 %Lincoln County: 3.5 %Lyman County: 9.4 %McCook County: 7.5 %McPherson County: 9.1 %Marshall County: 10.1 %Meade County: 5.1 %Mellette County: 8 %Miner County: 7.8 %Minnehaha County: 4.7 %Moody County: 9.2 %Oglala Lakota County: 4.8 %Pennington County: 6.1 %Perkins County: 10.5 %Potter County: 6.8 %Roberts County: 10 %Sanborn County: 8 %Spink County: 7.8 %Stanley County: 6 %Sully County: 9 %Todd County: 6.9 %Tripp County: 9.5 %Turner County: 6.2 %Union County: 4.8 %Walworth County: 7.1 %Yankton County: 5.7 %Ziebach County: 8.7 %
  • Under 5.3
  • 5.3 to 6.9
  • 6.9 to 7.5
  • 7.5 to 8.7
  • 8.7 to 9.8
  • 9.8 and over
%, 2018. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

Top 40 counties, 2018

Brule County: 11.3 %Brule County11.3Aurora County: 11.1 %Aurora County11.1Douglas County: 11.1 %Douglas County11.1Jackson County: 11.1 %Jackson County11.1Jerauld County: 10.8 %Jerauld County10.8Perkins County: 10.5 %Perkins County10.5Marshall County: 10.1 %Marshall County10.1Hand County: 10 %Hand County10Roberts County: 10 %Roberts County10Day County: 9.9 %Day County9.9Campbell County: 9.8 %Campbell County9.8Gregory County: 9.8 %Gregory County9.8Charles Mix County: 9.7 %Charles Mix County9.7Corson County: 9.6 %Corson County9.6Jones County: 9.6 %Jones County9.6Tripp County: 9.5 %Tripp County9.5Lyman County: 9.4 %Lyman County9.4Moody County: 9.2 %Moody County9.2McPherson County: 9.1 %McPherson County9.1Hyde County: 9 %Hyde County9Sully County: 9 %Sully County9Haakon County: 8.8 %Haakon County8.8Clark County: 8.7 %Clark County8.7Ziebach County: 8.7 %Ziebach County8.7Bennett County: 8.3 %Bennett County8.3Edmunds County: 8.1 %Edmunds County8.1Beadle County: 8 %Beadle County8Hutchinson County: 8 %Hutchinson County8Mellette County: 8 %Mellette County8Sanborn County: 8 %Sanborn County8Miner County: 7.8 %Miner County7.8Spink County: 7.8 %Spink County7.8Custer County: 7.5 %Custer County7.5Deuel County: 7.5 %Deuel County7.5Dewey County: 7.5 %Dewey County7.5McCook County: 7.5 %McCook County7.5Kingsbury County: 7.4 %Kingsbury County7.4Faulk County: 7.2 %Faulk County7.2Harding County: 7.2 %Harding County7.2Bon Homme County: 7.1 %Bon Homme County7.1Brule County: 11.3 %Brule County11.3Aurora County: 11.1 %Aurora County11.1Douglas County: 11.1 %Douglas County11.1Jackson County: 11.1 %Jackson County11.1Jerauld County: 10.8 %Jerauld County10.8Perkins County: 10.5 %Perkins County10.5Marshall County: 10.1 %Marshall County10.1Hand County: 10 %Hand County10Roberts County: 10 %Roberts County10Day County: 9.9 %Day County9.9Campbell County: 9.8 %Campbell County9.8Gregory County: 9.8 %Gregory County9.8Charles Mix County: 9.7 %Charles Mix County9.7Corson County: 9.6 %Corson County9.6Jones County: 9.6 %Jones County9.6Tripp County: 9.5 %Tripp County9.5Lyman County: 9.4 %Lyman County9.4Moody County: 9.2 %Moody County9.2McPherson County: 9.1 %McPherson County9.1Hyde County: 9 %Hyde County9Sully County: 9 %Sully County9Haakon County: 8.8 %Haakon County8.8Clark County: 8.7 %Clark County8.7Ziebach County: 8.7 %Ziebach County8.7Bennett County: 8.3 %Bennett County8.3Edmunds County: 8.1 %Edmunds County8.1Beadle County: 8 %Beadle County8Hutchinson County: 8 %Hutchinson County8Mellette County: 8 %Mellette County8Sanborn County: 8 %Sanborn County8Miner County: 7.8 %Miner County7.8Spink County: 7.8 %Spink County7.8Custer County: 7.5 %Custer County7.5Deuel County: 7.5 %Deuel County7.5Dewey County: 7.5 %Dewey County7.5McCook County: 7.5 %McCook County7.5Kingsbury County: 7.4 %Kingsbury County7.4Faulk County: 7.2 %Faulk County7.2Harding County: 7.2 %Harding County7.2Bon Homme County: 7.1 %Bon Homme County7.1
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2018 (%)Change on 2017
1Brule County11.3-3.1 pts
2Aurora County11.1-1.1 pts
2Douglas County11.1-1.1 pts
2Jackson County11.1-2.7 pts
5Jerauld County10.8-1.5 pts
6Perkins County10.5-4.4 pts
7Marshall County10.1-5 pts
8Hand County10-1.2 pts
8Roberts County10-3.5 pts
10Day County9.9-1.9 pts
11Campbell County9.8-1.4 pts
11Gregory County9.8-1 pts
13Charles Mix County9.7-0.3 pts
14Corson County9.6-1.6 pts
14Jones County9.6-4.3 pts
16Tripp County9.5-2.6 pts
17Lyman County9.4-1.7 pts
18Moody County9.2-3 pts
19McPherson County9.1-3.4 pts
20Hyde County9-1.1 pts
20Sully County9-2.3 pts
22Haakon County8.8-4.1 pts
23Clark County8.7-2.6 pts
23Ziebach County8.7-3.3 pts
25Bennett County8.3-1.9 pts
26Edmunds County8.1-2.8 pts
27Beadle County8+0.8 pts
27Hutchinson County8-1.7 pts
27Mellette County8-4.2 pts
27Sanborn County8-1.8 pts
31Miner County7.8-0.2 pts
31Spink County7.8-0.3 pts
33Custer County7.5-0.6 pts
33Deuel County7.5+0.5 pts
33Dewey County7.5-1.8 pts
33McCook County7.5+0.4 pts
37Kingsbury County7.4-0.1 pts
38Faulk County7.2-0.4 pts
38Harding County7.2-2.7 pts
40Bon Homme County7.1-1.8 pts
40Hanson County7.1-1.3 pts
40Walworth County7.1-0.5 pts
43Grant County6.9+0.2 pts
43Todd County6.90 pts
45Butte County6.8+0.9 pts
45Potter County6.8-1.9 pts
47Hamlin County6.2-1.7 pts
47Turner County6.2-0.7 pts
49Pennington County6.1-0.1 pts
50Stanley County6-1 pts
51Yankton County5.7+0.3 pts
52Fall River County5.6-0.8 pts
53Brown County5.5-1 pts
54Buffalo County5.3-2.2 pts
54Hughes County5.3-0.7 pts
56Davison County5.2+0.1 pts
57Meade County5.1-0.4 pts
58Clay County4.9-1.3 pts
58Lake County4.9-0.6 pts
58Lawrence County4.9-0.5 pts
61Oglala Lakota County4.8-0.9 pts
61Union County4.8-0.9 pts
63Brookings County4.7-0.3 pts
63Minnehaha County4.7-0.3 pts
65Codington County4.5-0.2 pts
66Lincoln County3.5-0.1 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of all people under 19. 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. Under 19 matches the age limit for children in Medicaid and the Children's Health Insurance Program (CHIP).

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 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-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 19, all races, both sexes, all income levels, states and counties (Counties in South Dakota by uninsured rate, under 19 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in South Dakota by uninsured rate, under 19 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2018. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Counties in South Dakota by uninsured rate, under 19 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2018.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in South Dakota by uninsured rate, under 19 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2018,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in South Dakota by uninsured rate, under 19 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2018. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in South Dakota by uninsured rate, under 19 (US model-based estimate), 2018
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-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2018.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, under 19 (US model-based estimate)?

Brule County, with 11.3% in 2018, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US model-based estimate)?

Lincoln County, with 3.5% in 2018.

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 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 19 (US model-based estimate): other rankings

Counties in South Dakota: more rankings