Data / Rankings / Uninsured rate, under 19 (US, ACS) / Counties in Maine

Counties in Maine by uninsured rate, under 19 (US, ACS)

Waldo County had the highest uninsured rate, under 19 (US, ACS) of 16 counties in 2023, at 12.9%. Cumberland County had the lowest, at 2.4%. The median was 4.7% and the figure for Maine was 4.6%. Source: the U.S. Census Bureau.

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Highest12.9Waldo County
Lowest2.4Cumberland County
Median4.716 counties
Maine4.6History

Map of counties, 2023

Androscoggin County: 4.4 %Aroostook County: 7.9 %Cumberland County: 2.4 %Franklin County: 4.8 %Hancock County: 11.1 %Kennebec County: 4.1 %Knox County: 4.2 %Lincoln County: 6.6 %Oxford County: 5.2 %Penobscot County: 4 %Piscataquis County: 5.1 %Sagadahoc County: 4.6 %Somerset County: 3.9 %Waldo County: 12.9 %Washington County: 8.1 %York County: 3.6 %
  • Under 4
  • 4 to 4.4
  • 4.4 to 5.1
  • 5.1 to 7.8
  • 7.8 and over
%, 2023. Source: Invokely calculation with data from U.S. Census Bureau. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2023

Waldo County: 12.9 %Waldo County12.9Hancock County: 11.1 %Hancock County11.1Washington County: 8.1 %Washington County8.1Aroostook County: 7.9 %Aroostook County7.9Lincoln County: 6.6 %Lincoln County6.6Oxford County: 5.2 %Oxford County5.2Piscataquis County: 5.1 %Piscataquis County5.1Franklin County: 4.8 %Franklin County4.8Sagadahoc County: 4.6 %Sagadahoc County4.6Androscoggin County: 4.4 %Androscoggin County4.4Knox County: 4.2 %Knox County4.2Kennebec County: 4.1 %Kennebec County4.1Penobscot County: 4 %Penobscot County4Somerset County: 3.9 %Somerset County3.9York County: 3.6 %York County3.6Cumberland County: 2.4 %Cumberland County2.4Waldo County: 12.9 %Waldo County12.9Hancock County: 11.1 %Hancock County11.1Washington County: 8.1 %Washington County8.1Aroostook County: 7.9 %Aroostook County7.9Lincoln County: 6.6 %Lincoln County6.6Oxford County: 5.2 %Oxford County5.2Piscataquis County: 5.1 %Piscataquis County5.1Franklin County: 4.8 %Franklin County4.8Sagadahoc County: 4.6 %Sagadahoc County4.6Androscoggin County: 4.4 %Androscoggin County4.4Knox County: 4.2 %Knox County4.2Kennebec County: 4.1 %Kennebec County4.1Penobscot County: 4 %Penobscot County4Somerset County: 3.9 %Somerset County3.9York County: 3.6 %York County3.6Cumberland County: 2.4 %Cumberland County2.4
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-12.

Full ranking

RankCounties2023 (%)Change on 2022
1Waldo County12.9-1.6 pts
2Hancock County11.1-0.8 pts
3Washington County8.1+0.2 pts
4Aroostook County7.9-0.6 pts
5Lincoln County6.6-1.5 pts
6Oxford County5.2+1.4 pts
7Piscataquis County5.1-0.6 pts
8Franklin County4.8+0.1 pts
9Sagadahoc County4.6-1 pts
10Androscoggin County4.4+0.3 pts
11Knox County4.2-2 pts
12Kennebec County4.1-0.8 pts
13Penobscot County4-0.8 pts
14Somerset County3.9+0.6 pts
15York County3.6-0.1 pts
16Cumberland County2.4+0.2 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of the civilian noninstitutionalized population under 19. 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs (Counties in Maine by uninsured rate, under 19 (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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Maine by uninsured rate, under 19 (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-under-19-acs/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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Counties in Maine by uninsured rate, under 19 (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-under-19-acs/maine-counties?period=2023.

Harvard

U.S. Census Bureau (2026) American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs, Counties in Maine by uninsured rate, under 19 (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-under-19-acs/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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Maine by uninsured rate, under 19 (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-under-19-acs/maine-counties?period=2023. Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs: Counties in Maine by uninsured rate, under 19 (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-under-19-acs/maine-counties?period=2023
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19-acs/maine-counties?period=2023.
N1  - Publisher attribution: U.S. Census Bureau. American Community Survey 5-year estimates, table B27010: people under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, 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, under 19 (US, ACS) using official data, and cite the source.
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Questions

Which county has the highest uninsured rate, under 19 (US, ACS)?

Waldo County, with 12.9% in 2023, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US, ACS)?

Cumberland County, with 2.4% 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 under 19 with no health insurance coverage as a percentage of the civilian noninstitutionalized population under 19, calculated with stored inputs. Retrieved 2026-10-12.

Uninsured rate, under 19 (US, ACS): other rankings

Counties in Maine: more rankings