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)

Douglas County had the highest uninsured rate, under 19 (US model-based estimate) of 66 counties in 2021, at 12.8%. Corson County had the lowest, at 5.3%. The median was 9.1% and the figure for South Dakota was 7.6%. Source: the U.S. Census Bureau.

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Highest12.8Douglas County
Lowest5.3Corson County
Median9.166 counties
South Dakota7.6History

Map of counties, 2021

Aurora County: 11.2 %Beadle County: 10.5 %Bennett County: 8.5 %Bon Homme County: 10.4 %Brookings County: 5.5 %Brown County: 7 %Brule County: 11.5 %Buffalo County: 8.3 %Butte County: 9.5 %Campbell County: 7.3 %Charles Mix County: 11.3 %Clark County: 10.1 %Clay County: 7.8 %Codington County: 8.2 %Corson County: 5.3 %Custer County: 12 %Davison County: 7.4 %Day County: 11.5 %Deuel County: 8.6 %Dewey County: 9.9 %Douglas County: 12.8 %Edmunds County: 9.8 %Fall River County: 9 %Faulk County: 10.2 %Grant County: 10 %Gregory County: 11.9 %Haakon County: 9.7 %Hamlin County: 11.1 %Hand County: 8 %Hanson County: 10.7 %Harding County: 9.7 %Hughes County: 6.6 %Hutchinson County: 9.8 %Hyde County: 9.2 %Jackson County: 8.5 %Jerauld County: 8.2 %Jones County: 9.2 %Kingsbury County: 10.2 %Lake County: 8.6 %Lawrence County: 8.1 %Lincoln County: 5.7 %Lyman County: 11.5 %McCook County: 10.9 %McPherson County: 8.1 %Marshall County: 9.7 %Meade County: 6.4 %Mellette County: 6.9 %Miner County: 11.2 %Minnehaha County: 6.1 %Moody County: 10.4 %Oglala Lakota County: 6.1 %Pennington County: 7.9 %Perkins County: 7.8 %Potter County: 7.7 %Roberts County: 11.1 %Sanborn County: 9.3 %Spink County: 9.8 %Stanley County: 7.9 %Sully County: 5.5 %Todd County: 5.9 %Tripp County: 10.2 %Turner County: 9.4 %Union County: 6.2 %Walworth County: 8.8 %Yankton County: 8.5 %Ziebach County: 8.1 %
  • Under 7
  • 7 to 8.1
  • 8.1 to 9.1
  • 9.1 to 9.8
  • 9.8 to 11
  • 11 and over
%, 2021. 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, 2021

Douglas County: 12.8 %Douglas County12.8Custer County: 12 %Custer County12Gregory County: 11.9 %Gregory County11.9Brule County: 11.5 %Brule County11.5Day County: 11.5 %Day County11.5Lyman County: 11.5 %Lyman County11.5Charles Mix County: 11.3 %Charles Mix County11.3Aurora County: 11.2 %Aurora County11.2Miner County: 11.2 %Miner County11.2Hamlin County: 11.1 %Hamlin County11.1Roberts County: 11.1 %Roberts County11.1McCook County: 10.9 %McCook County10.9Hanson County: 10.7 %Hanson County10.7Beadle County: 10.5 %Beadle County10.5Bon Homme County: 10.4 %Bon Homme County10.4Moody County: 10.4 %Moody County10.4Faulk County: 10.2 %Faulk County10.2Kingsbury County: 10.2 %Kingsbury County10.2Tripp County: 10.2 %Tripp County10.2Clark County: 10.1 %Clark County10.1Grant County: 10 %Grant County10Dewey County: 9.9 %Dewey County9.9Edmunds County: 9.8 %Edmunds County9.8Hutchinson County: 9.8 %Hutchinson County9.8Spink County: 9.8 %Spink County9.8Haakon County: 9.7 %Haakon County9.7Harding County: 9.7 %Harding County9.7Marshall County: 9.7 %Marshall County9.7Butte County: 9.5 %Butte County9.5Turner County: 9.4 %Turner County9.4Sanborn County: 9.3 %Sanborn County9.3Hyde County: 9.2 %Hyde County9.2Jones County: 9.2 %Jones County9.2Fall River County: 9 %Fall River County9Walworth County: 8.8 %Walworth County8.8Deuel County: 8.6 %Deuel County8.6Lake County: 8.6 %Lake County8.6Bennett County: 8.5 %Bennett County8.5Jackson County: 8.5 %Jackson County8.5Yankton County: 8.5 %Yankton County8.5Douglas County: 12.8 %Douglas County12.8Custer County: 12 %Custer County12Gregory County: 11.9 %Gregory County11.9Brule County: 11.5 %Brule County11.5Day County: 11.5 %Day County11.5Lyman County: 11.5 %Lyman County11.5Charles Mix County: 11.3 %Charles Mix County11.3Aurora County: 11.2 %Aurora County11.2Miner County: 11.2 %Miner County11.2Hamlin County: 11.1 %Hamlin County11.1Roberts County: 11.1 %Roberts County11.1McCook County: 10.9 %McCook County10.9Hanson County: 10.7 %Hanson County10.7Beadle County: 10.5 %Beadle County10.5Bon Homme County: 10.4 %Bon Homme County10.4Moody County: 10.4 %Moody County10.4Faulk County: 10.2 %Faulk County10.2Kingsbury County: 10.2 %Kingsbury County10.2Tripp County: 10.2 %Tripp County10.2Clark County: 10.1 %Clark County10.1Grant County: 10 %Grant County10Dewey County: 9.9 %Dewey County9.9Edmunds County: 9.8 %Edmunds County9.8Hutchinson County: 9.8 %Hutchinson County9.8Spink County: 9.8 %Spink County9.8Haakon County: 9.7 %Haakon County9.7Harding County: 9.7 %Harding County9.7Marshall County: 9.7 %Marshall County9.7Butte County: 9.5 %Butte County9.5Turner County: 9.4 %Turner County9.4Sanborn County: 9.3 %Sanborn County9.3Hyde County: 9.2 %Hyde County9.2Jones County: 9.2 %Jones County9.2Fall River County: 9 %Fall River County9Walworth County: 8.8 %Walworth County8.8Deuel County: 8.6 %Deuel County8.6Lake County: 8.6 %Lake County8.6Bennett County: 8.5 %Bennett County8.5Jackson County: 8.5 %Jackson County8.5Yankton County: 8.5 %Yankton County8.5
%. 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

RankCounties2021 (%)Change on 2020
1Douglas County12.8+3.3 pts
2Custer County12+2.7 pts
3Gregory County11.9+2.3 pts
4Brule County11.5+0.6 pts
4Day County11.5+2.9 pts
4Lyman County11.5+2.3 pts
7Charles Mix County11.3+0.6 pts
8Aurora County11.2+1.6 pts
8Miner County11.2+2.8 pts
10Hamlin County11.1+2.2 pts
10Roberts County11.1-0.7 pts
12McCook County10.9+1.9 pts
13Hanson County10.7+4.2 pts
14Beadle County10.5+2.3 pts
15Bon Homme County10.4+2.1 pts
15Moody County10.4-1 pts
17Faulk County10.2+5.6 pts
17Kingsbury County10.2+2.6 pts
17Tripp County10.2+2.8 pts
20Clark County10.1+1.9 pts
21Grant County10+1 pts
22Dewey County9.9+2.4 pts
23Edmunds County9.8+2.3 pts
23Hutchinson County9.8+1.9 pts
23Spink County9.8+2.7 pts
26Haakon County9.7+2 pts
26Harding County9.7-0.5 pts
26Marshall County9.7+1.2 pts
29Butte County9.5+2.3 pts
30Turner County9.4+1.7 pts
31Sanborn County9.3+1.6 pts
32Hyde County9.2+0.7 pts
32Jones County9.2+0.4 pts
34Fall River County9+2 pts
35Walworth County8.8+1.1 pts
36Deuel County8.6+1.1 pts
36Lake County8.6+1.8 pts
38Bennett County8.5+0.5 pts
38Jackson County8.5+1.8 pts
38Yankton County8.5+0.6 pts
41Buffalo County8.3+1.1 pts
42Codington County8.2+1.9 pts
42Jerauld County8.2+3.3 pts
44Lawrence County8.1+1.5 pts
44McPherson County8.1+2.7 pts
44Ziebach County8.1+3.3 pts
47Hand County80 pts
48Pennington County7.9+2 pts
48Stanley County7.9+1.5 pts
50Clay County7.8+1.3 pts
50Perkins County7.8+2.9 pts
52Potter County7.7-1.3 pts
53Davison County7.4+1.4 pts
54Campbell County7.3+1.4 pts
55Brown County7+0.6 pts
56Mellette County6.9+1.5 pts
57Hughes County6.6-0.6 pts
58Meade County6.4+0.5 pts
59Union County6.2-0.5 pts
60Minnehaha County6.1+0.9 pts
60Oglala Lakota County6.1+0.7 pts
62Todd County5.9+2 pts
63Lincoln County5.7+0.8 pts
64Brookings County5.5+0.4 pts
64Sully County5.5-1.4 pts
66Corson County5.3+1.8 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-2021-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), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-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), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2021. 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), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2021.

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), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_south_dakota_2021,
  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), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2021. 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-2021-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), 2021
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-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/south-dakota-counties?period=2021.
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-2021-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)?

Douglas County, with 12.8% in 2021, according to the U.S. Census Bureau.

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

Corson County, with 5.3% in 2021.

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