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 2013, at 36.6%. Kitsap County had the lowest, at 16.5%. The median was 22.3% and the figure for Washington was 19.5%. Source: the U.S. Census Bureau.

Highest36.6Yakima County

Lowest16.5Kitsap County

Median22.339 counties

Washington19.5History

Map of counties, 2013

Under 18
18 to 20
20 to 22
22 to 24
24 to 27
27 and over

%, 2013. 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, 2013

%. 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

Rank	Counties	2013 (%)	Change on 2012
1	Yakima County	36.6	+2.1 pts
2	Adams County	35	+2.2 pts
3	Okanogan County	32.8	+1.4 pts
4	Franklin County	32.3	+0.7 pts
5	Grant County	30.9	+0.7 pts
6	Douglas County	29.3	+0.6 pts
7	Ferry County	27.5	+1.7 pts
8	Chelan County	27.1	+1.9 pts
9	Grays Harbor County	26.8	+2.2 pts
10	Pacific County	24.8	+0.6 pts
11	San Juan County	24.6	-0.1 pts
12	Mason County	24	+1.1 pts
13	Klickitat County	23.9	+1.3 pts
14	Stevens County	23.3	+1.5 pts
15	Walla Walla County	23.1	-0.1 pts
16	Skagit County	22.9	+0.1 pts
17	Kittitas County	22.8	+2 pts
18	Wahkiakum County	22.5	+3.3 pts
19	Lewis County	22.4	+0.1 pts
20	Whatcom County	22.3	+0.4 pts
21	Clallam County	21.8	-0.6 pts
22	Cowlitz County	21.2	+1.1 pts
23	Jefferson County	20.8	+1.9 pts
24	Benton County	20.7	+1.6 pts
25	Spokane County	20.4	+1.8 pts
26	Columbia County	20.3	+0.2 pts
27	Pend Oreille County	20.2	-0.1 pts
28	Clark County	19	-0.8 pts
29	Skamania County	18.4	-0.5 pts
29	Whitman County	18.4	+0.9 pts
31	Lincoln County	18.3	-2 pts
31	Pierce County	18.3	-1.5 pts
33	Asotin County	18.2	-0.5 pts
34	Garfield County	17.6	-0.5 pts
34	Snohomish County	17.6	-0.7 pts
36	Island County	16.8	+0.9 pts
37	Thurston County	16.7	-1.3 pts
38	King County	16.5	+0.1 pts
38	Kitsap County	16.5	-0.1 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-2013-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), 2013) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-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), 2013. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2013. 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), 2013. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2013.

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), 2013 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2013 (Accessed: 12 October 2026).

BibTeX

@misc{census_counties_in_washington_by_2013,
  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), 2013}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2013. 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-2013-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), 2013
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-2013-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2013
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/washington-counties?period=2013.
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-2013-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 36.6% in 2013, according to the U.S. Census Bureau.

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

Kitsap County, with 16.5% in 2013.

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.