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

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

Jefferson County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 36 counties in 2018, at 15.2%. Sherman County had the lowest, at 7.3%. The median was 11.1% and the figure for Oregon was 10.2%. Source: the U.S. Census Bureau.

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Highest15.2Jefferson County
Lowest7.3Sherman County
Median11.136 counties
Oregon10.2History

Map of counties, 2018

Baker County: 10 %Benton County: 7.3 %Clackamas County: 8 %Clatsop County: 11.7 %Columbia County: 7.7 %Coos County: 11.5 %Crook County: 11.1 %Curry County: 10.5 %Deschutes County: 9.8 %Douglas County: 10.3 %Gilliam County: 8.8 %Grant County: 10.7 %Harney County: 11.3 %Hood River County: 14.2 %Jackson County: 11.4 %Jefferson County: 15.2 %Josephine County: 11.3 %Klamath County: 13.6 %Lake County: 11.3 %Lane County: 11.2 %Lincoln County: 13.8 %Linn County: 9.3 %Malheur County: 15.1 %Marion County: 13.1 %Morrow County: 14.1 %Multnomah County: 9.5 %Polk County: 9.6 %Sherman County: 7.3 %Tillamook County: 11.4 %Umatilla County: 13.5 %Union County: 9.7 %Wallowa County: 10.2 %Wasco County: 12.7 %Washington County: 9 %Wheeler County: 10.5 %Yamhill County: 11.3 %
  • Under 9.3
  • 9.3 to 10
  • 10 to 11
  • 11 to 14
  • 14 and over
%, 2018. 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, 2018

Jefferson County: 15.2 %Jefferson County15.2Malheur County: 15.1 %Malheur County15.1Hood River County: 14.2 %Hood River County14.2Morrow County: 14.1 %Morrow County14.1Lincoln County: 13.8 %Lincoln County13.8Klamath County: 13.6 %Klamath County13.6Umatilla County: 13.5 %Umatilla County13.5Marion County: 13.1 %Marion County13.1Wasco County: 12.7 %Wasco County12.7Clatsop County: 11.7 %Clatsop County11.7Coos County: 11.5 %Coos County11.5Jackson County: 11.4 %Jackson County11.4Tillamook County: 11.4 %Tillamook County11.4Harney County: 11.3 %Harney County11.3Josephine County: 11.3 %Josephine County11.3Lake County: 11.3 %Lake County11.3Yamhill County: 11.3 %Yamhill County11.3Lane County: 11.2 %Lane County11.2Crook County: 11.1 %Crook County11.1Grant County: 10.7 %Grant County10.7Curry County: 10.5 %Curry County10.5Wheeler County: 10.5 %Wheeler County10.5Douglas County: 10.3 %Douglas County10.3Wallowa County: 10.2 %Wallowa County10.2Baker County: 10 %Baker County10Deschutes County: 9.8 %Deschutes County9.8Union County: 9.7 %Union County9.7Polk County: 9.6 %Polk County9.6Multnomah County: 9.5 %Multnomah County9.5Linn County: 9.3 %Linn County9.3Washington County: 9 %Washington County9Gilliam County: 8.8 %Gilliam County8.8Clackamas County: 8 %Clackamas County8Columbia County: 7.7 %Columbia County7.7Benton County: 7.3 %Benton County7.3Sherman County: 7.3 %Sherman County7.3Jefferson County: 15.2 %Jefferson County15.2Malheur County: 15.1 %Malheur County15.1Hood River County: 14.2 %Hood River County14.2Morrow County: 14.1 %Morrow County14.1Lincoln County: 13.8 %Lincoln County13.8Klamath County: 13.6 %Klamath County13.6Umatilla County: 13.5 %Umatilla County13.5Marion County: 13.1 %Marion County13.1Wasco County: 12.7 %Wasco County12.7Clatsop County: 11.7 %Clatsop County11.7Coos County: 11.5 %Coos County11.5Jackson County: 11.4 %Jackson County11.4Tillamook County: 11.4 %Tillamook County11.4Harney County: 11.3 %Harney County11.3Josephine County: 11.3 %Josephine County11.3Lake County: 11.3 %Lake County11.3Yamhill County: 11.3 %Yamhill County11.3Lane County: 11.2 %Lane County11.2Crook County: 11.1 %Crook County11.1Grant County: 10.7 %Grant County10.7Curry County: 10.5 %Curry County10.5Wheeler County: 10.5 %Wheeler County10.5Douglas County: 10.3 %Douglas County10.3Wallowa County: 10.2 %Wallowa County10.2Baker County: 10 %Baker County10Deschutes County: 9.8 %Deschutes County9.8Union County: 9.7 %Union County9.7Polk County: 9.6 %Polk County9.6Multnomah County: 9.5 %Multnomah County9.5Linn County: 9.3 %Linn County9.3Washington County: 9 %Washington County9Gilliam County: 8.8 %Gilliam County8.8Clackamas County: 8 %Clackamas County8Columbia County: 7.7 %Columbia County7.7Benton County: 7.3 %Benton County7.3Sherman County: 7.3 %Sherman County7.3
%. 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

RankCounties2018 (%)Change on 2017
1Jefferson County15.2-0.7 pts
2Malheur County15.1+2.1 pts
3Hood River County14.2+0.8 pts
4Morrow County14.1+0.2 pts
5Lincoln County13.8+1.6 pts
6Klamath County13.6+1 pts
7Umatilla County13.5+0.6 pts
8Marion County13.1+0.3 pts
9Wasco County12.7-0.7 pts
10Clatsop County11.7+1.3 pts
11Coos County11.5+0.7 pts
12Jackson County11.4+0.3 pts
12Tillamook County11.4-0.7 pts
14Harney County11.3-0.3 pts
14Josephine County11.3+1.3 pts
14Lake County11.3-0.9 pts
14Yamhill County11.3+1.5 pts
18Lane County11.2+1.7 pts
19Crook County11.1+1 pts
20Grant County10.7+0.8 pts
21Curry County10.5-0.1 pts
21Wheeler County10.5-1 pts
23Douglas County10.3+1.1 pts
24Wallowa County10.2+1 pts
25Baker County10+0.2 pts
26Deschutes County9.8+0.7 pts
27Union County9.7+0.4 pts
28Polk County9.6-1 pts
29Multnomah County9.5-0.3 pts
30Linn County9.3-0.5 pts
31Washington County9+0.3 pts
32Gilliam County8.8+0.7 pts
33Clackamas County8+0.5 pts
34Columbia County7.7-0.6 pts
35Benton County7.3-0.5 pts
35Sherman County7.3-0.9 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-2018-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 Oregon by uninsured rate, ages 18 to 64 (US model-based estimate), 2018) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-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 Oregon by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/oregon-counties?period=2018. 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 Oregon by uninsured rate, ages 18 to 64 (US model-based estimate), 2018. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/oregon-counties?period=2018.

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 Oregon by uninsured rate, ages 18 to 64 (US model-based estimate), 2018 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/oregon-counties?period=2018 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_oregon_by_2018,
  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 Oregon by uninsured rate, ages 18 to 64 (US model-based estimate), 2018}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2018-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/oregon-counties?period=2018. 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-2018-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 Oregon by uninsured rate, ages 18 to 64 (US model-based estimate), 2018
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-2018-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/oregon-counties?period=2018
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/oregon-counties?period=2018.
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-2018-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)?

Jefferson County, with 15.2% in 2018, according to the U.S. Census Bureau.

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

Sherman County, with 7.3% in 2018.

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 Oregon: more rankings