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

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

Fremont County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 23 counties in 2020, at 24.1%. Johnson County had the lowest, at 13.7%. The median was 16.8% and the figure for Wyoming was 16.6%. Source: the U.S. Census Bureau.

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Highest24.1Fremont County
Lowest13.7Johnson County
Median16.823 counties
Wyoming16.6History

Map of counties, 2020

Albany County: 14.2 %Big Horn County: 19.9 %Campbell County: 15.3 %Carbon County: 20.1 %Converse County: 16.3 %Crook County: 17.7 %Fremont County: 24.1 %Goshen County: 17.5 %Hot Springs County: 19 %Johnson County: 13.7 %Laramie County: 14.4 %Lincoln County: 18.9 %Natrona County: 16.2 %Niobrara County: 21.3 %Park County: 16.5 %Platte County: 17.8 %Sheridan County: 16.7 %Sublette County: 16.8 %Sweetwater County: 16.4 %Teton County: 16.1 %Uinta County: 17 %Washakie County: 18.6 %Weston County: 15.2 %
  • Under 16
  • 16 to 18
  • 18 to 19
  • 19 and over
%, 2020. 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.

All counties, 2020

Fremont County: 24.1 %Fremont County24.1Niobrara County: 21.3 %Niobrara County21.3Carbon County: 20.1 %Carbon County20.1Big Horn County: 19.9 %Big Horn County19.9Hot Springs County: 19 %Hot Springs County19Lincoln County: 18.9 %Lincoln County18.9Washakie County: 18.6 %Washakie County18.6Platte County: 17.8 %Platte County17.8Crook County: 17.7 %Crook County17.7Goshen County: 17.5 %Goshen County17.5Uinta County: 17 %Uinta County17Sublette County: 16.8 %Sublette County16.8Sheridan County: 16.7 %Sheridan County16.7Park County: 16.5 %Park County16.5Sweetwater County: 16.4 %Sweetwater County16.4Converse County: 16.3 %Converse County16.3Natrona County: 16.2 %Natrona County16.2Teton County: 16.1 %Teton County16.1Campbell County: 15.3 %Campbell County15.3Weston County: 15.2 %Weston County15.2Laramie County: 14.4 %Laramie County14.4Albany County: 14.2 %Albany County14.2Johnson County: 13.7 %Johnson County13.7Fremont County: 24.1 %Fremont County24.1Niobrara County: 21.3 %Niobrara County21.3Carbon County: 20.1 %Carbon County20.1Big Horn County: 19.9 %Big Horn County19.9Hot Springs County: 19 %Hot Springs County19Lincoln County: 18.9 %Lincoln County18.9Washakie County: 18.6 %Washakie County18.6Platte County: 17.8 %Platte County17.8Crook County: 17.7 %Crook County17.7Goshen County: 17.5 %Goshen County17.5Uinta County: 17 %Uinta County17Sublette County: 16.8 %Sublette County16.8Sheridan County: 16.7 %Sheridan County16.7Park County: 16.5 %Park County16.5Sweetwater County: 16.4 %Sweetwater County16.4Converse County: 16.3 %Converse County16.3Natrona County: 16.2 %Natrona County16.2Teton County: 16.1 %Teton County16.1Campbell County: 15.3 %Campbell County15.3Weston County: 15.2 %Weston County15.2Laramie County: 14.4 %Laramie County14.4Albany County: 14.2 %Albany County14.2Johnson County: 13.7 %Johnson County13.7
%. 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

RankCounties2020 (%)Change on 2019
1Fremont County24.1-0.1 pts
2Niobrara County21.3+0.5 pts
3Carbon County20.1+0.8 pts
4Big Horn County19.9-3.8 pts
5Hot Springs County19+2.1 pts
6Lincoln County18.9+1.6 pts
7Washakie County18.6+0.7 pts
8Platte County17.8+1.5 pts
9Crook County17.7-0.1 pts
10Goshen County17.5+0.1 pts
11Uinta County17+1 pts
12Sublette County16.8+0.7 pts
13Sheridan County16.7+1.2 pts
14Park County16.5+1 pts
15Sweetwater County16.4+0.6 pts
16Converse County16.3+1 pts
17Natrona County16.2-0.5 pts
18Teton County16.1-1.9 pts
19Campbell County15.3+0.2 pts
20Weston County15.2-0.2 pts
21Laramie County14.4+1.1 pts
22Albany County14.2+0.1 pts
23Johnson County13.7-1.5 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-2020-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 Wyoming by uninsured rate, ages 18 to 64 (US model-based estimate), 2020) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-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 Wyoming by uninsured rate, ages 18 to 64 (US model-based estimate), 2020. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wyoming-counties?period=2020. 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 Wyoming by uninsured rate, ages 18 to 64 (US model-based estimate), 2020. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wyoming-counties?period=2020.

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 Wyoming by uninsured rate, ages 18 to 64 (US model-based estimate), 2020 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/wyoming-counties?period=2020 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_wyoming_by_2020,
  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 Wyoming by uninsured rate, ages 18 to 64 (US model-based estimate), 2020}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2020-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wyoming-counties?period=2020. 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-2020-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 Wyoming by uninsured rate, ages 18 to 64 (US model-based estimate), 2020
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-2020-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/wyoming-counties?period=2020
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/wyoming-counties?period=2020.
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-2020-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

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

Fremont County, with 24.1% in 2020, according to the U.S. Census Bureau.

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

Johnson County, with 13.7% in 2020.

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 Wyoming: more rankings