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)

Piscataquis County had the highest uninsured rate, ages 35 to 64 (US, ACS) of 16 counties in 2023, at 14.6%. Cumberland County had the lowest, at 5.7%. The median was 10.3% and the figure for Maine was 8.6%. Source: the U.S. Census Bureau.

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Highest14.6Piscataquis County
Lowest5.7Cumberland County
Median10.316 counties
Maine8.6History

Map of counties, 2023

Androscoggin County: 8.6 %Aroostook County: 9.7 %Cumberland County: 5.7 %Franklin County: 10.6 %Hancock County: 12.7 %Kennebec County: 8.1 %Knox County: 9.5 %Lincoln County: 11.9 %Oxford County: 11.3 %Penobscot County: 10.1 %Piscataquis County: 14.6 %Sagadahoc County: 6.1 %Somerset County: 11.3 %Waldo County: 11.8 %Washington County: 13.3 %York County: 6.8 %
  • Under 8.1
  • 8.1 to 9.7
  • 9.7 to 11
  • 11 to 12
  • 12 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Piscataquis County: 14.6 %Piscataquis County14.6Washington County: 13.3 %Washington County13.3Hancock County: 12.7 %Hancock County12.7Lincoln County: 11.9 %Lincoln County11.9Waldo County: 11.8 %Waldo County11.8Oxford County: 11.3 %Oxford County11.3Somerset County: 11.3 %Somerset County11.3Franklin County: 10.6 %Franklin County10.6Penobscot County: 10.1 %Penobscot County10.1Aroostook County: 9.7 %Aroostook County9.7Knox County: 9.5 %Knox County9.5Androscoggin County: 8.6 %Androscoggin County8.6Kennebec County: 8.1 %Kennebec County8.1York County: 6.8 %York County6.8Sagadahoc County: 6.1 %Sagadahoc County6.1Cumberland County: 5.7 %Cumberland County5.7Piscataquis County: 14.6 %Piscataquis County14.6Washington County: 13.3 %Washington County13.3Hancock County: 12.7 %Hancock County12.7Lincoln County: 11.9 %Lincoln County11.9Waldo County: 11.8 %Waldo County11.8Oxford County: 11.3 %Oxford County11.3Somerset County: 11.3 %Somerset County11.3Franklin County: 10.6 %Franklin County10.6Penobscot County: 10.1 %Penobscot County10.1Aroostook County: 9.7 %Aroostook County9.7Knox County: 9.5 %Knox County9.5Androscoggin County: 8.6 %Androscoggin County8.6Kennebec County: 8.1 %Kennebec County8.1York County: 6.8 %York County6.8Sagadahoc County: 6.1 %Sagadahoc County6.1Cumberland County: 5.7 %Cumberland County5.7
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Piscataquis County14.6-1.2 pts
2Washington County13.3-1.1 pts
3Hancock County12.7-0.4 pts
4Lincoln County11.9-1.1 pts
5Waldo County11.8-1.2 pts
6Oxford County11.3-0.6 pts
6Somerset County11.3-0.4 pts
8Franklin County10.6-0.4 pts
9Penobscot County10.1-0.7 pts
10Aroostook County9.7-0.5 pts
11Knox County9.5-1.6 pts
12Androscoggin County8.6-0.8 pts
13Kennebec County8.1-0.8 pts
14York County6.80 pts
15Sagadahoc County6.1-1.4 pts
16Cumberland County5.7-0.6 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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), 2023) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-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), 2023. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties?period=2023. 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), 2023. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties?period=2023.

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), 2023 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties?period=2023 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maine_by_2023,
  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), 2023}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties?period=2023. 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/2023/table-based-SF/data/5YRData/acsdt5y2023-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), 2023
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2023/table-based-SF/data/5YRData/acsdt5y2023-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-35-64/maine-counties?period=2023.
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/2023/table-based-SF/data/5YRData/acsdt5y2023-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 14.6% in 2023, according to the U.S. Census Bureau.

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

Cumberland County, with 5.7% in 2023.

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