Data / Rankings / Uninsured rate, ages 35 to 64 (US, ACS) / Counties in Maine

Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS), 2024

Piscataquis County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 16 counties in 2024, at 14.1%. Sagadahoc County had the lowest, at 5.3%. The median was 8.6% and the figure for Maine was 7.9%. Source: the U.S. Census Bureau.

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Highest14.1Piscataquis County
Lowest5.3Sagadahoc County
Median8.616 counties
Maine7.9History

Map of counties, 2024

Androscoggin County: 7.7 %Aroostook County: 8.6 %Cumberland County: 5.6 %Franklin County: 8.5 %Hancock County: 13.1 %Kennebec County: 7.1 %Knox County: 7.7 %Lincoln County: 10.4 %Oxford County: 11.3 %Penobscot County: 8.7 %Piscataquis County: 14.1 %Sagadahoc County: 5.3 %Somerset County: 10.7 %Waldo County: 11.6 %Washington County: 12.8 %York County: 6 %
  • Under 7.1
  • 7.1 to 8.5
  • 8.5 to 10
  • 10 to 12
  • 12 and over
%, 2024. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2024

Piscataquis County: 14.1 %Piscataquis County14.1Hancock County: 13.1 %Hancock County13.1Washington County: 12.8 %Washington County12.8Waldo County: 11.6 %Waldo County11.6Oxford County: 11.3 %Oxford County11.3Somerset County: 10.7 %Somerset County10.7Lincoln County: 10.4 %Lincoln County10.4Penobscot County: 8.7 %Penobscot County8.7Aroostook County: 8.6 %Aroostook County8.6Franklin County: 8.5 %Franklin County8.5Knox County: 7.7 %Knox County7.7Androscoggin County: 7.7 %Androscoggin County7.7Kennebec County: 7.1 %Kennebec County7.1York County: 6 %York County6Cumberland County: 5.6 %Cumberland County5.6Sagadahoc County: 5.3 %Sagadahoc County5.3Piscataquis County: 14.1 %Piscataquis County14.1Hancock County: 13.1 %Hancock County13.1Washington County: 12.8 %Washington County12.8Waldo County: 11.6 %Waldo County11.6Oxford County: 11.3 %Oxford County11.3Somerset County: 10.7 %Somerset County10.7Lincoln County: 10.4 %Lincoln County10.4Penobscot County: 8.7 %Penobscot County8.7Aroostook County: 8.6 %Aroostook County8.6Franklin County: 8.5 %Franklin County8.5Knox County: 7.7 %Knox County7.7Androscoggin County: 7.7 %Androscoggin County7.7Kennebec County: 7.1 %Kennebec County7.1York County: 6 %York County6Cumberland County: 5.6 %Cumberland County5.6Sagadahoc County: 5.3 %Sagadahoc County5.3
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2024 (%)Change on 2023
1Piscataquis County14.1-0.5 pts
2Hancock County13.1+0.4 pts
3Washington County12.8-0.6 pts
4Waldo County11.6-0.2 pts
5Oxford County11.30 pts
6Somerset County10.7-0.6 pts
7Lincoln County10.4-1.5 pts
8Penobscot County8.7-1.4 pts
9Aroostook County8.6-1.1 pts
10Franklin County8.5-2.1 pts
11Knox County7.7-1.8 pts
12Androscoggin County7.7-0.9 pts
13Kennebec County7.1-1 pts
14York County6-0.8 pts
15Cumberland County5.6-0 pts
16Sagadahoc County5.3-0.7 pts

Other periods

About this ranking

People aged 35 to 64 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 35 to 64. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Coverage is what people reported at the interview, so the five-year figure averages five years of answers. People whose only coverage is the Indian Health Service count as uninsured. Active-duty military and people living in institutions are outside the universe. For single-year model-based county figures under 65, see uninsured_rate_under_65, uninsured_rate_18_64 and uninsured_rate_under_19 (SAHIE), a different source.

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. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. 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). American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs (Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS), 2024) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS), 2024. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS), 2024. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs, Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS), 2024 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maine_by_2024,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS), 2024}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs: Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS), 2024
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2024/table-based-SF/data/5YRData/acsdt5y2024-b27010.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Maine by uninsured rate, ages 35 to 64 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, ages 35 to 64 (US, ACS)?

Piscataquis County, with 14.1% in 2024, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 35 to 64 (US, ACS)?

Sagadahoc County, with 5.3% 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, American Community Survey 5-year estimates, table B27010: people aged 35 to 64 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 35 to 64, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 35 to 64 (US, ACS): other rankings

Counties in Maine: more rankings