Data / Rankings / Uninsured rate, ages 19 to 34 (US, ACS) / Counties in Maine

Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS)

Franklin County had the highest uninsured rate, ages 19 to 34 (US, ACS) of 16 counties in 2021, at 22.8%. Cumberland County had the lowest, at 10.4%. The median was 15.2% and the figure for Maine was 13.4%. Source: the U.S. Census Bureau.

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Highest22.8Franklin County
Lowest10.4Cumberland County
Median15.216 counties
Maine13.4History

Map of counties, 2021

Androscoggin County: 15.6 %Aroostook County: 18.8 %Cumberland County: 10.4 %Franklin County: 22.8 %Hancock County: 14.5 %Kennebec County: 13.3 %Knox County: 14.8 %Lincoln County: 17.1 %Oxford County: 19.9 %Penobscot County: 12.3 %Piscataquis County: 21.2 %Sagadahoc County: 13.6 %Somerset County: 14.3 %Waldo County: 16.8 %Washington County: 20.6 %York County: 10.7 %
  • Under 13
  • 13 to 15
  • 15 to 17
  • 17 to 20
  • 20 and over
%, 2021. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Franklin County: 22.8 %Franklin County22.8Piscataquis County: 21.2 %Piscataquis County21.2Washington County: 20.6 %Washington County20.6Oxford County: 19.9 %Oxford County19.9Aroostook County: 18.8 %Aroostook County18.8Lincoln County: 17.1 %Lincoln County17.1Waldo County: 16.8 %Waldo County16.8Androscoggin County: 15.6 %Androscoggin County15.6Knox County: 14.8 %Knox County14.8Hancock County: 14.5 %Hancock County14.5Somerset County: 14.3 %Somerset County14.3Sagadahoc County: 13.6 %Sagadahoc County13.6Kennebec County: 13.3 %Kennebec County13.3Penobscot County: 12.3 %Penobscot County12.3York County: 10.7 %York County10.7Cumberland County: 10.4 %Cumberland County10.4Franklin County: 22.8 %Franklin County22.8Piscataquis County: 21.2 %Piscataquis County21.2Washington County: 20.6 %Washington County20.6Oxford County: 19.9 %Oxford County19.9Aroostook County: 18.8 %Aroostook County18.8Lincoln County: 17.1 %Lincoln County17.1Waldo County: 16.8 %Waldo County16.8Androscoggin County: 15.6 %Androscoggin County15.6Knox County: 14.8 %Knox County14.8Hancock County: 14.5 %Hancock County14.5Somerset County: 14.3 %Somerset County14.3Sagadahoc County: 13.6 %Sagadahoc County13.6Kennebec County: 13.3 %Kennebec County13.3Penobscot County: 12.3 %Penobscot County12.3York County: 10.7 %York County10.7Cumberland County: 10.4 %Cumberland County10.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)
1Franklin County22.8
2Piscataquis County21.2
3Washington County20.6
4Oxford County19.9
5Aroostook County18.8
6Lincoln County17.1
7Waldo County16.8
8Androscoggin County15.6
9Knox County14.8
10Hancock County14.5
11Somerset County14.3
12Sagadahoc County13.6
13Kennebec County13.3
14Penobscot County12.3
15York County10.7
16Cumberland County10.4

Other periods

About this ranking

People aged 19 to 34 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population aged 19 to 34. 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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs (Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat

MLA 9

American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS), 2021. U.S. Census Bureau, 29 Jan. 2026, https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maine-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maine-counties?period=2021.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs, Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-19-34/maine-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maine_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maine-counties?period=2021. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary\_file/2021/table-based-SF/data/5YRData/acsdt5y2021-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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs: Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS), 2021
PY  - 2026
DA  - 2026/01/29
PB  - U.S. Census Bureau
DB  - Invokely
UR  - https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat
L2  - https://invokely.ai/rankings/uninsured-rate-ages-19-34/maine-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-19-34/maine-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people aged 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b27010.dat. Retrieved 2026-10-12.
ER  -
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Rank Counties in Maine by uninsured rate, ages 19 to 34 (US, ACS) using official data, and cite the source.
rank_places {"indicator":"uninsured_rate_19_34","level":"province","within":"Maine","limit":10}
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Questions

Which county has the highest uninsured rate, ages 19 to 34 (US, ACS)?

Franklin County, with 22.8% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 19 to 34 (US, ACS)?

Cumberland County, with 10.4% in 2021.

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 19 to 34 with no health insurance coverage as a percentage of the civilian noninstitutionalized population aged 19 to 34, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, ages 19 to 34 (US, ACS): other rankings

Counties in Maine: more rankings