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

Counties in Maine by uninsured rate, under 65 (US model-based estimate), 2024

Washington County had the highest uninsured rate, under 65 (US model-based estimate) of 16 counties in 2024, at 11.1%. York County had the lowest, at 5.5%. The median was 8.9% and the figure for Maine was 7.2%. Source: the U.S. Census Bureau.

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Highest11.1Washington County
Lowest5.5York County
Median8.916 counties
Maine7.2History

Map of counties, 2024

Androscoggin County: 7.1 %Aroostook County: 9.9 %Cumberland County: 5.6 %Franklin County: 9.1 %Hancock County: 9.1 %Kennebec County: 7.2 %Knox County: 8.8 %Lincoln County: 8.8 %Oxford County: 9.7 %Penobscot County: 7.1 %Piscataquis County: 9.9 %Sagadahoc County: 6.5 %Somerset County: 9.1 %Waldo County: 9 %Washington County: 11.1 %York County: 5.5 %
  • Under 7.1
  • 7.1 to 8.8
  • 8.8 to 9.1
  • 9.1 to 9.7
  • 9.7 and over
%, 2024. 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, 2024

Washington County: 11.1 %Washington County11.1Aroostook County: 9.9 %Aroostook County9.9Piscataquis County: 9.9 %Piscataquis County9.9Oxford County: 9.7 %Oxford County9.7Franklin County: 9.1 %Franklin County9.1Hancock County: 9.1 %Hancock County9.1Somerset County: 9.1 %Somerset County9.1Waldo County: 9 %Waldo County9Knox County: 8.8 %Knox County8.8Lincoln County: 8.8 %Lincoln County8.8Kennebec County: 7.2 %Kennebec County7.2Androscoggin County: 7.1 %Androscoggin County7.1Penobscot County: 7.1 %Penobscot County7.1Sagadahoc County: 6.5 %Sagadahoc County6.5Cumberland County: 5.6 %Cumberland County5.6York County: 5.5 %York County5.5Washington County: 11.1 %Washington County11.1Aroostook County: 9.9 %Aroostook County9.9Piscataquis County: 9.9 %Piscataquis County9.9Oxford County: 9.7 %Oxford County9.7Franklin County: 9.1 %Franklin County9.1Hancock County: 9.1 %Hancock County9.1Somerset County: 9.1 %Somerset County9.1Waldo County: 9 %Waldo County9Knox County: 8.8 %Knox County8.8Lincoln County: 8.8 %Lincoln County8.8Kennebec County: 7.2 %Kennebec County7.2Androscoggin County: 7.1 %Androscoggin County7.1Penobscot County: 7.1 %Penobscot County7.1Sagadahoc County: 6.5 %Sagadahoc County6.5Cumberland County: 5.6 %Cumberland County5.6York County: 5.5 %York County5.5
%. 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

RankCounties2024 (%)Change on 2023
1Washington County11.1-0.1 pts
2Aroostook County9.9+0.9 pts
2Piscataquis County9.9+1.3 pts
4Oxford County9.7-0.4 pts
5Franklin County9.1-0.2 pts
5Hancock County9.1-1.3 pts
5Somerset County9.1-0.3 pts
8Waldo County9+0.5 pts
9Knox County8.8-1.4 pts
9Lincoln County8.8+0.2 pts
11Kennebec County7.2-0.2 pts
12Androscoggin County7.1-0.7 pts
12Penobscot County7.1-1 pts
14Sagadahoc County6.5-0.4 pts
15Cumberland County5.6-0.6 pts
16York County5.5-1.2 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-2024-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 Maine by uninsured rate, under 65 (US model-based estimate), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-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 Maine by uninsured rate, under 65 (US model-based estimate), 2024. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/maine-counties. 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 Maine by uninsured rate, under 65 (US model-based estimate), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/maine-counties.

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 Maine by uninsured rate, under 65 (US model-based estimate), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-65/maine-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maine_by_2024,
  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 Maine by uninsured rate, under 65 (US model-based estimate), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2024-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/maine-counties. 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-2024-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 Maine by uninsured rate, under 65 (US model-based estimate), 2024
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-2024-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-65/maine-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-65/maine-counties.
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-2024-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)?

Washington County, with 11.1% in 2024, according to the U.S. Census Bureau.

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

York County, with 5.5% in 2024.

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 Maine: more rankings