Data / Rankings / Uninsured rate, under 19 (US model-based estimate) / Counties in Maine

Counties in Maine by uninsured rate, under 19 (US model-based estimate)

Lincoln County had the highest uninsured rate, under 19 (US model-based estimate) of 16 counties in 2021, at 6.2%. Cumberland County had the lowest, at 3.5%. The median was 4.5% and the figure for Maine was 4.3%. Source: the U.S. Census Bureau.

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Highest6.2Lincoln County
Lowest3.5Cumberland County
Median4.516 counties
Maine4.3History

Map of counties, 2021

Androscoggin County: 3.9 %Aroostook County: 5 %Cumberland County: 3.5 %Franklin County: 4.5 %Hancock County: 5.8 %Kennebec County: 4.4 %Knox County: 5 %Lincoln County: 6.2 %Oxford County: 4.5 %Penobscot County: 4.2 %Piscataquis County: 4.9 %Sagadahoc County: 4.4 %Somerset County: 4.3 %Waldo County: 5.4 %Washington County: 5.4 %York County: 4.1 %
  • Under 4.2
  • 4.2 to 4.4
  • 4.4 to 4.9
  • 4.9 to 5.4
  • 5.4 and over
%, 2021. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2021

Lincoln County: 6.2 %Lincoln County6.2Hancock County: 5.8 %Hancock County5.8Waldo County: 5.4 %Waldo County5.4Washington County: 5.4 %Washington County5.4Aroostook County: 5 %Aroostook County5Knox County: 5 %Knox County5Piscataquis County: 4.9 %Piscataquis County4.9Franklin County: 4.5 %Franklin County4.5Oxford County: 4.5 %Oxford County4.5Kennebec County: 4.4 %Kennebec County4.4Sagadahoc County: 4.4 %Sagadahoc County4.4Somerset County: 4.3 %Somerset County4.3Penobscot County: 4.2 %Penobscot County4.2York County: 4.1 %York County4.1Androscoggin County: 3.9 %Androscoggin County3.9Cumberland County: 3.5 %Cumberland County3.5Lincoln County: 6.2 %Lincoln County6.2Hancock County: 5.8 %Hancock County5.8Waldo County: 5.4 %Waldo County5.4Washington County: 5.4 %Washington County5.4Aroostook County: 5 %Aroostook County5Knox County: 5 %Knox County5Piscataquis County: 4.9 %Piscataquis County4.9Franklin County: 4.5 %Franklin County4.5Oxford County: 4.5 %Oxford County4.5Kennebec County: 4.4 %Kennebec County4.4Sagadahoc County: 4.4 %Sagadahoc County4.4Somerset County: 4.3 %Somerset County4.3Penobscot County: 4.2 %Penobscot County4.2York County: 4.1 %York County4.1Androscoggin County: 3.9 %Androscoggin County3.9Cumberland County: 3.5 %Cumberland County3.5
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2021 (%)Change on 2020
1Lincoln County6.2-2.9 pts
2Hancock County5.8-1.5 pts
3Waldo County5.4-4.8 pts
3Washington County5.4-2.6 pts
5Aroostook County5-2.2 pts
5Knox County5-1.2 pts
7Piscataquis County4.9-2.5 pts
8Franklin County4.5-0.8 pts
8Oxford County4.5-0.9 pts
10Kennebec County4.4-0.8 pts
10Sagadahoc County4.4-2.3 pts
12Somerset County4.3-1.6 pts
13Penobscot County4.2-0.7 pts
14York County4.1-1.5 pts
15Androscoggin County3.9-1.1 pts
16Cumberland County3.5-0.8 pts

Other periods

About this ranking

People under 19 without health insurance coverage of any kind, as a percentage of all people under 19. 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. Under 19 matches the age limit for children in Medicaid and the Children's Health Insurance Program (CHIP).

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 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-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 19, all races, both sexes, all income levels, states and counties (Counties in Maine by uninsured rate, under 19 (US model-based estimate), 2021) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Maine by uninsured rate, under 19 (US model-based estimate), 2021. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maine-counties?period=2021. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Counties in Maine by uninsured rate, under 19 (US model-based estimate), 2021. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maine-counties?period=2021.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties, Counties in Maine by uninsured rate, under 19 (US model-based estimate), 2021 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-under-19/maine-counties?period=2021 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maine_by_2021,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Maine by uninsured rate, under 19 (US model-based estimate), 2021}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maine-counties?period=2021. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties: Counties in Maine by uninsured rate, under 19 (US model-based estimate), 2021
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-2021-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-under-19/maine-counties?period=2021
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-under-19/maine-counties?period=2021.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2021-csv.zip. Retrieved 2026-10-12.
ER  -
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rank_places {"indicator":"uninsured_rate_under_19","level":"province","within":"Maine","limit":10}
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Questions

Which county has the highest uninsured rate, under 19 (US model-based estimate)?

Lincoln County, with 6.2% in 2021, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, under 19 (US model-based estimate)?

Cumberland County, with 3.5% 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, Small Area Health Insurance Estimates (SAHIE): percent uninsured, under 19, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, under 19 (US model-based estimate): other rankings

Counties in Maine: more rankings