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

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

Yakima County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 39 counties in 2019, at 20.4%. Garfield County had the lowest, at 6.6%. The median was 10.8% and the figure for Washington was 9.4%. Source: the U.S. Census Bureau.

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Highest20.4Yakima County
Lowest6.6Garfield County
Median10.839 counties
Washington9.4History

Map of counties, 2019

Adams County: 18.9 %Asotin County: 9.1 %Benton County: 10.7 %Chelan County: 14.9 %Clallam County: 11.6 %Clark County: 9.1 %Columbia County: 7.7 %Cowlitz County: 9.1 %Douglas County: 14.9 %Ferry County: 13.3 %Franklin County: 18.5 %Garfield County: 6.6 %Grant County: 18.2 %Grays Harbor County: 12 %Island County: 7.8 %Jefferson County: 9.6 %King County: 7.4 %Kitsap County: 7.6 %Kittitas County: 10.2 %Klickitat County: 13 %Lewis County: 11.7 %Lincoln County: 8.6 %Mason County: 12.8 %Okanogan County: 18.5 %Pacific County: 12.5 %Pend Oreille County: 10.8 %Pierce County: 9.5 %San Juan County: 11.7 %Skagit County: 11.8 %Skamania County: 8.5 %Snohomish County: 8.7 %Spokane County: 8.6 %Stevens County: 10.8 %Thurston County: 8.4 %Wahkiakum County: 9.7 %Walla Walla County: 11.9 %Whatcom County: 10.9 %Whitman County: 7.9 %Yakima County: 20.4 %
  • Under 8.4
  • 8.4 to 9.1
  • 9.1 to 11
  • 11 to 12
  • 12 to 14
  • 14 and over
%, 2019. 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, 2019

Yakima County: 20.4 %Yakima County20.4Adams County: 18.9 %Adams County18.9Franklin County: 18.5 %Franklin County18.5Okanogan County: 18.5 %Okanogan County18.5Grant County: 18.2 %Grant County18.2Chelan County: 14.9 %Chelan County14.9Douglas County: 14.9 %Douglas County14.9Ferry County: 13.3 %Ferry County13.3Klickitat County: 13 %Klickitat County13Mason County: 12.8 %Mason County12.8Pacific County: 12.5 %Pacific County12.5Grays Harbor County: 12 %Grays Harbor County12Walla Walla County: 11.9 %Walla Walla County11.9Skagit County: 11.8 %Skagit County11.8Lewis County: 11.7 %Lewis County11.7San Juan County: 11.7 %San Juan County11.7Clallam County: 11.6 %Clallam County11.6Whatcom County: 10.9 %Whatcom County10.9Pend Oreille County: 10.8 %Pend Oreille County10.8Stevens County: 10.8 %Stevens County10.8Benton County: 10.7 %Benton County10.7Kittitas County: 10.2 %Kittitas County10.2Wahkiakum County: 9.7 %Wahkiakum County9.7Jefferson County: 9.6 %Jefferson County9.6Pierce County: 9.5 %Pierce County9.5Asotin County: 9.1 %Asotin County9.1Clark County: 9.1 %Clark County9.1Cowlitz County: 9.1 %Cowlitz County9.1Snohomish County: 8.7 %Snohomish County8.7Lincoln County: 8.6 %Lincoln County8.6Spokane County: 8.6 %Spokane County8.6Skamania County: 8.5 %Skamania County8.5Thurston County: 8.4 %Thurston County8.4Whitman County: 7.9 %Whitman County7.9Island County: 7.8 %Island County7.8Columbia County: 7.7 %Columbia County7.7Kitsap County: 7.6 %Kitsap County7.6King County: 7.4 %King County7.4Garfield County: 6.6 %Garfield County6.6Yakima County: 20.4 %Yakima County20.4Adams County: 18.9 %Adams County18.9Franklin County: 18.5 %Franklin County18.5Okanogan County: 18.5 %Okanogan County18.5Grant County: 18.2 %Grant County18.2Chelan County: 14.9 %Chelan County14.9Douglas County: 14.9 %Douglas County14.9Ferry County: 13.3 %Ferry County13.3Klickitat County: 13 %Klickitat County13Mason County: 12.8 %Mason County12.8Pacific County: 12.5 %Pacific County12.5Grays Harbor County: 12 %Grays Harbor County12Walla Walla County: 11.9 %Walla Walla County11.9Skagit County: 11.8 %Skagit County11.8Lewis County: 11.7 %Lewis County11.7San Juan County: 11.7 %San Juan County11.7Clallam County: 11.6 %Clallam County11.6Whatcom County: 10.9 %Whatcom County10.9Pend Oreille County: 10.8 %Pend Oreille County10.8Stevens County: 10.8 %Stevens County10.8Benton County: 10.7 %Benton County10.7Kittitas County: 10.2 %Kittitas County10.2Wahkiakum County: 9.7 %Wahkiakum County9.7Jefferson County: 9.6 %Jefferson County9.6Pierce County: 9.5 %Pierce County9.5Asotin County: 9.1 %Asotin County9.1Clark County: 9.1 %Clark County9.1Cowlitz County: 9.1 %Cowlitz County9.1Snohomish County: 8.7 %Snohomish County8.7Lincoln County: 8.6 %Lincoln County8.6Spokane County: 8.6 %Spokane County8.6Skamania County: 8.5 %Skamania County8.5Thurston County: 8.4 %Thurston County8.4Whitman County: 7.9 %Whitman County7.9Island County: 7.8 %Island County7.8Columbia County: 7.7 %Columbia County7.7Kitsap County: 7.6 %Kitsap County7.6King County: 7.4 %King County7.4Garfield County: 6.6 %Garfield County6.6
%. 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

RankCounties2019 (%)Change on 2018
1Yakima County20.4-1.4 pts
2Adams County18.9-0.6 pts
3Franklin County18.5+1.7 pts
3Okanogan County18.5+0.1 pts
5Grant County18.2+1.3 pts
6Chelan County14.9+0.7 pts
6Douglas County14.90 pts
8Ferry County13.3+0.3 pts
9Klickitat County13-0.5 pts
10Mason County12.8+0.4 pts
11Pacific County12.5-0.2 pts
12Grays Harbor County12+0.3 pts
13Walla Walla County11.9+1 pts
14Skagit County11.8+0.1 pts
15Lewis County11.7+0.6 pts
15San Juan County11.7+0.7 pts
17Clallam County11.6+0.1 pts
18Whatcom County10.9+1.5 pts
19Pend Oreille County10.8+0.6 pts
19Stevens County10.8-1.1 pts
21Benton County10.7-1.2 pts
22Kittitas County10.2+0.3 pts
23Wahkiakum County9.7+0.3 pts
24Jefferson County9.6-0.6 pts
25Pierce County9.5+1.1 pts
26Asotin County9.1+0.5 pts
26Clark County9.1+0.3 pts
26Cowlitz County9.1-1 pts
29Snohomish County8.70 pts
30Lincoln County8.6-0.6 pts
30Spokane County8.6+0.5 pts
32Skamania County8.5-0.6 pts
33Thurston County8.4+0.5 pts
34Whitman County7.9+0.7 pts
35Island County7.8-0.1 pts
36Columbia County7.7-0.8 pts
37Kitsap County7.6+0.6 pts
38King County7.4-0.1 pts
39Garfield County6.6+1 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-2019-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 Washington by uninsured rate, ages 18 to 64 (US model-based estimate), 2019) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-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 Washington by uninsured rate, ages 18 to 64 (US model-based estimate), 2019. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2019. 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 Washington by uninsured rate, ages 18 to 64 (US model-based estimate), 2019. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2019.

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 Washington by uninsured rate, ages 18 to 64 (US model-based estimate), 2019 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2019 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_washington_by_2019,
  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 Washington by uninsured rate, ages 18 to 64 (US model-based estimate), 2019}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2019-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2019. 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-2019-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 Washington by uninsured rate, ages 18 to 64 (US model-based estimate), 2019
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-2019-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2019
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2019.
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-2019-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)?

Yakima County, with 20.4% in 2019, according to the U.S. Census Bureau.

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

Garfield County, with 6.6% in 2019.

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 Washington: more rankings