Data / Rankings / Uninsured rate, all ages (US) / Counties in Wyoming

Counties in Wyoming by uninsured rate, all ages (US)

Fremont County had the highest uninsured rate, all ages (US) of 23 counties in 2021, at 19.5%. Crook County had the lowest, at 7.9%. The median was 11.2% and the figure for Wyoming was 11.7%. Source: the U.S. Census Bureau.

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Highest19.5Fremont County
Lowest7.9Crook County
Median11.223 counties
Wyoming11.7History

Map of counties, 2021

Albany County: 7.9 %Big Horn County: 14.9 %Campbell County: 13 %Carbon County: 13.8 %Converse County: 9.8 %Crook County: 7.9 %Fremont County: 19.5 %Goshen County: 10.9 %Hot Springs County: 15.2 %Johnson County: 10.9 %Laramie County: 8.5 %Lincoln County: 13.7 %Natrona County: 11.4 %Niobrara County: 10.4 %Park County: 11 %Platte County: 13.6 %Sheridan County: 12 %Sublette County: 11.1 %Sweetwater County: 13.3 %Teton County: 11.1 %Uinta County: 11.2 %Washakie County: 10.7 %Weston County: 12.8 %
  • Under 11
  • 11 to 12
  • 12 to 14
  • 14 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Fremont County: 19.5 %Fremont County19.5Hot Springs County: 15.2 %Hot Springs County15.2Big Horn County: 14.9 %Big Horn County14.9Carbon County: 13.8 %Carbon County13.8Lincoln County: 13.7 %Lincoln County13.7Platte County: 13.6 %Platte County13.6Sweetwater County: 13.3 %Sweetwater County13.3Campbell County: 13 %Campbell County13Weston County: 12.8 %Weston County12.8Sheridan County: 12 %Sheridan County12Natrona County: 11.4 %Natrona County11.4Uinta County: 11.2 %Uinta County11.2Sublette County: 11.1 %Sublette County11.1Teton County: 11.1 %Teton County11.1Park County: 11 %Park County11Johnson County: 10.9 %Johnson County10.9Goshen County: 10.9 %Goshen County10.9Washakie County: 10.7 %Washakie County10.7Niobrara County: 10.4 %Niobrara County10.4Converse County: 9.8 %Converse County9.8Laramie County: 8.5 %Laramie County8.5Albany County: 7.9 %Albany County7.9Crook County: 7.9 %Crook County7.9Fremont County: 19.5 %Fremont County19.5Hot Springs County: 15.2 %Hot Springs County15.2Big Horn County: 14.9 %Big Horn County14.9Carbon County: 13.8 %Carbon County13.8Lincoln County: 13.7 %Lincoln County13.7Platte County: 13.6 %Platte County13.6Sweetwater County: 13.3 %Sweetwater County13.3Campbell County: 13 %Campbell County13Weston County: 12.8 %Weston County12.8Sheridan County: 12 %Sheridan County12Natrona County: 11.4 %Natrona County11.4Uinta County: 11.2 %Uinta County11.2Sublette County: 11.1 %Sublette County11.1Teton County: 11.1 %Teton County11.1Park County: 11 %Park County11Johnson County: 10.9 %Johnson County10.9Goshen County: 10.9 %Goshen County10.9Washakie County: 10.7 %Washakie County10.7Niobrara County: 10.4 %Niobrara County10.4Converse County: 9.8 %Converse County9.8Laramie County: 8.5 %Laramie County8.5Albany County: 7.9 %Albany County7.9Crook County: 7.9 %Crook County7.9
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Fremont County19.5
2Hot Springs County15.2
3Big Horn County14.9
4Carbon County13.8
5Lincoln County13.7
6Platte County13.6
7Sweetwater County13.3
8Campbell County13
9Weston County12.8
10Sheridan County12
11Natrona County11.4
12Uinta County11.2
13Sublette County11.1
14Teton County11.1
15Park County11
16Johnson County10.9
17Goshen County10.9
18Washakie County10.7
19Niobrara County10.4
20Converse County9.8
21Laramie County8.5
22Albany County7.9
23Crook County7.9

Other periods

About this ranking

People without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population. 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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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 with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs (Counties in Wyoming by uninsured rate, all ages (US), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Wyoming by uninsured rate, all ages (US), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate/wyoming-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Counties in Wyoming by uninsured rate, all ages (US), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate/wyoming-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs, Counties in Wyoming by uninsured rate, all ages (US), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate/wyoming-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_wyoming_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Wyoming by uninsured rate, all ages (US), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/wyoming-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs: Counties in Wyoming by uninsured rate, all ages (US), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate/wyoming-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate/wyoming-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, all ages (US)?

Fremont County, with 19.5% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, all ages (US)?

Crook County, with 7.9% 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, American Community Survey 5-year estimates, table B27010: people with no health insurance coverage as a percentage of the civilian noninstitutionalized population, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, all ages (US): other rankings

Counties in Wyoming: more rankings