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

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

Fremont County had the highest uninsured rate, under 65 (US model-based estimate) of 23 counties in 2021, at 22.1%. Johnson County had the lowest, at 10.5%. The median was 16.8% and the figure for Wyoming was 15.3%. Source: the U.S. Census Bureau.

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Highest22.1Fremont County
Lowest10.5Johnson County
Median16.823 counties
Wyoming15.3History

Map of counties, 2021

Albany County: 13.1 %Big Horn County: 20.7 %Campbell County: 14.7 %Carbon County: 18.2 %Converse County: 17.6 %Crook County: 18.7 %Fremont County: 22.1 %Goshen County: 17.2 %Hot Springs County: 16.7 %Johnson County: 10.5 %Laramie County: 13 %Lincoln County: 19.1 %Natrona County: 13.9 %Niobrara County: 18.9 %Park County: 13 %Platte County: 17.6 %Sheridan County: 14.8 %Sublette County: 17.7 %Sweetwater County: 15.5 %Teton County: 16.3 %Uinta County: 14.4 %Washakie County: 18.1 %Weston County: 16.8 %
  • Under 14
  • 14 to 16
  • 16 to 18
  • 18 to 19
  • 19 and over
%, 2021. 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.

All counties, 2021

Fremont County: 22.1 %Fremont County22.1Big Horn County: 20.7 %Big Horn County20.7Lincoln County: 19.1 %Lincoln County19.1Niobrara County: 18.9 %Niobrara County18.9Crook County: 18.7 %Crook County18.7Carbon County: 18.2 %Carbon County18.2Washakie County: 18.1 %Washakie County18.1Sublette County: 17.7 %Sublette County17.7Converse County: 17.6 %Converse County17.6Platte County: 17.6 %Platte County17.6Goshen County: 17.2 %Goshen County17.2Weston County: 16.8 %Weston County16.8Hot Springs County: 16.7 %Hot Springs County16.7Teton County: 16.3 %Teton County16.3Sweetwater County: 15.5 %Sweetwater County15.5Sheridan County: 14.8 %Sheridan County14.8Campbell County: 14.7 %Campbell County14.7Uinta County: 14.4 %Uinta County14.4Natrona County: 13.9 %Natrona County13.9Albany County: 13.1 %Albany County13.1Laramie County: 13 %Laramie County13Park County: 13 %Park County13Johnson County: 10.5 %Johnson County10.5Fremont County: 22.1 %Fremont County22.1Big Horn County: 20.7 %Big Horn County20.7Lincoln County: 19.1 %Lincoln County19.1Niobrara County: 18.9 %Niobrara County18.9Crook County: 18.7 %Crook County18.7Carbon County: 18.2 %Carbon County18.2Washakie County: 18.1 %Washakie County18.1Sublette County: 17.7 %Sublette County17.7Converse County: 17.6 %Converse County17.6Platte County: 17.6 %Platte County17.6Goshen County: 17.2 %Goshen County17.2Weston County: 16.8 %Weston County16.8Hot Springs County: 16.7 %Hot Springs County16.7Teton County: 16.3 %Teton County16.3Sweetwater County: 15.5 %Sweetwater County15.5Sheridan County: 14.8 %Sheridan County14.8Campbell County: 14.7 %Campbell County14.7Uinta County: 14.4 %Uinta County14.4Natrona County: 13.9 %Natrona County13.9Albany County: 13.1 %Albany County13.1Laramie County: 13 %Laramie County13Park County: 13 %Park County13Johnson County: 10.5 %Johnson County10.5
%. 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

RankCounties2021 (%)Change on 2020
1Fremont County22.1+2.3 pts
2Big Horn County20.7+3.8 pts
3Lincoln County19.1+2.4 pts
4Niobrara County18.9+0.3 pts
5Crook County18.7+3 pts
6Carbon County18.2+0.8 pts
7Washakie County18.1+2.2 pts
8Sublette County17.7+2.3 pts
9Converse County17.6+3.8 pts
9Platte County17.6+2.3 pts
11Goshen County17.2+2.2 pts
12Weston County16.8+3.7 pts
13Hot Springs County16.7+1 pts
14Teton County16.3+1.8 pts
15Sweetwater County15.5+1.7 pts
16Sheridan County14.8+0.8 pts
17Campbell County14.7+1.7 pts
18Uinta County14.4+0.5 pts
19Natrona County13.9+0.7 pts
20Albany County13.1+0.4 pts
21Laramie County13+0.6 pts
21Park County13-0.9 pts
23Johnson County10.5-1 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-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 65, all races, both sexes, all income levels, states and counties (Counties in Wyoming by uninsured rate, under 65 (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 65, all races, both sexes, all income levels, states and counties, Counties in Wyoming by uninsured rate, under 65 (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-65/wyoming-counties?period=2021. 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 Wyoming by uninsured rate, under 65 (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-65/wyoming-counties?period=2021.

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 Wyoming by uninsured rate, under 65 (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-65/wyoming-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_wyoming_by_2021,
  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 Wyoming by uninsured rate, under 65 (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-65/wyoming-counties?period=2021. 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-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 65, all races, both sexes, all income levels, states and counties: Counties in Wyoming by uninsured rate, under 65 (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-65/wyoming-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/wyoming-counties?period=2021.
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-2021-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)?

Fremont County, with 22.1% in 2021, according to the U.S. Census Bureau.

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

Johnson County, with 10.5% 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 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 Wyoming: more rankings