Data / Rankings / Uninsured rate, ages 18 to 64 (US model-based estimate) / Counties in Maine

Counties in Maine by uninsured rate, ages 18 to 64 (US model-based estimate)

Washington County had the highest uninsured rate, ages 18 to 64 (US model-based estimate) of 16 counties in 2013, at 21.9%. Sagadahoc County had the lowest, at 13.3%. The median was 17.5% and the figure for Maine was 16%. Source: the U.S. Census Bureau.

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Highest21.9Washington County
Lowest13.3Sagadahoc County
Median17.516 counties
Maine16History

Map of counties, 2013

Androscoggin County: 15.3 %Aroostook County: 18.6 %Cumberland County: 13.9 %Franklin County: 17.5 %Hancock County: 18.7 %Kennebec County: 15.6 %Knox County: 18.6 %Lincoln County: 19.4 %Oxford County: 17.7 %Penobscot County: 16.9 %Piscataquis County: 19 %Sagadahoc County: 13.3 %Somerset County: 17.5 %Waldo County: 17.1 %Washington County: 21.9 %York County: 14.4 %
  • Under 15
  • 15 to 17
  • 17 to 18
  • 18 to 19
  • 19 and over
%, 2013. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Boundaries: U.S. Census Bureau cartographic boundary files.

All counties, 2013

Washington County: 21.9 %Washington County21.9Lincoln County: 19.4 %Lincoln County19.4Piscataquis County: 19 %Piscataquis County19Hancock County: 18.7 %Hancock County18.7Aroostook County: 18.6 %Aroostook County18.6Knox County: 18.6 %Knox County18.6Oxford County: 17.7 %Oxford County17.7Franklin County: 17.5 %Franklin County17.5Somerset County: 17.5 %Somerset County17.5Waldo County: 17.1 %Waldo County17.1Penobscot County: 16.9 %Penobscot County16.9Kennebec County: 15.6 %Kennebec County15.6Androscoggin County: 15.3 %Androscoggin County15.3York County: 14.4 %York County14.4Cumberland County: 13.9 %Cumberland County13.9Sagadahoc County: 13.3 %Sagadahoc County13.3Washington County: 21.9 %Washington County21.9Lincoln County: 19.4 %Lincoln County19.4Piscataquis County: 19 %Piscataquis County19Hancock County: 18.7 %Hancock County18.7Aroostook County: 18.6 %Aroostook County18.6Knox County: 18.6 %Knox County18.6Oxford County: 17.7 %Oxford County17.7Franklin County: 17.5 %Franklin County17.5Somerset County: 17.5 %Somerset County17.5Waldo County: 17.1 %Waldo County17.1Penobscot County: 16.9 %Penobscot County16.9Kennebec County: 15.6 %Kennebec County15.6Androscoggin County: 15.3 %Androscoggin County15.3York County: 14.4 %York County14.4Cumberland County: 13.9 %Cumberland County13.9Sagadahoc County: 13.3 %Sagadahoc County13.3
%. Source: U.S. Census Bureau, Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Full ranking

RankCounties2013 (%)Change on 2012
1Washington County21.9+1.7 pts
2Lincoln County19.4+2.9 pts
3Piscataquis County19+2.1 pts
4Hancock County18.7+1.3 pts
5Aroostook County18.6+1.1 pts
5Knox County18.6+0.8 pts
7Oxford County17.7+1.4 pts
8Franklin County17.5+1.2 pts
8Somerset County17.5+0.9 pts
10Waldo County17.1-0.1 pts
11Penobscot County16.9+1.9 pts
12Kennebec County15.6+1.8 pts
13Androscoggin County15.3+0.9 pts
14York County14.4+1 pts
15Cumberland County13.9+0.6 pts
16Sagadahoc County13.3+0.5 pts

Other periods

About this ranking

People aged 18 to 64 without health insurance coverage of any kind, as a percentage of all people aged 18 to 64. 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. Working-age adults; the rate for everyone under 65 is uninsured_rate_under_65.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-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, ages 18 to 64, all races, both sexes, all income levels, states and counties (Counties in Maine by uninsured rate, ages 18 to 64 (US model-based estimate), 2013) [Data set]. Retrieved October 12, 2026, from https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip

MLA 9

Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Maine by uninsured rate, ages 18 to 64 (US model-based estimate), 2013. U.S. Census Bureau, 6 Aug. 2026, https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maine-counties?period=2013. Accessed 12 Oct. 2026.

Chicago (author-date)

U.S. Census Bureau. 2026. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. Counties in Maine by uninsured rate, ages 18 to 64 (US model-based estimate), 2013. Dataset. Accessed October 12, 2026. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Also distributed by Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maine-counties?period=2013.

Harvard

U.S. Census Bureau (2026) Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties, Counties in Maine by uninsured rate, ages 18 to 64 (US model-based estimate), 2013 [Dataset]. Available at: https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip, via Invokely: https://invokely.ai/rankings/uninsured-rate-ages-18-64/maine-counties?period=2013 (Accessed: 12 October 2026).

BibTeX
@misc{census_counties_in_maine_by_2013,
  author = {{U.S. Census Bureau}},
  title = {{Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Maine by uninsured rate, ages 18 to 64 (US model-based estimate), 2013}},
  year = {2026},
  howpublished = {Data set},
  url = {https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip},
  urldate = {2026-10-12},
  note = {Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maine-counties?period=2013. Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Retrieved 2026-10-12.},
}
RIS
TY  - DATA
AU  - U.S. Census Bureau
TI  - Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties: Counties in Maine by uninsured rate, ages 18 to 64 (US model-based estimate), 2013
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-2013-csv.zip
L2  - https://invokely.ai/rankings/uninsured-rate-ages-18-64/maine-counties?period=2013
Y2  - 2026/10/12
N1  - Accessed via Invokely, https://invokely.ai/rankings/uninsured-rate-ages-18-64/maine-counties?period=2013.
N1  - Publisher attribution: U.S. Census Bureau. Small Area Health Insurance Estimates (SAHIE): percent uninsured, ages 18 to 64, all races, both sexes, all income levels, states and counties. https://www2.census.gov/programs-surveys/sahie/datasets/time-series/estimates-acs/sahie-2013-csv.zip. Retrieved 2026-10-12.
ER  -
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Questions

Which county has the highest uninsured rate, ages 18 to 64 (US model-based estimate)?

Washington County, with 21.9% in 2013, according to the U.S. Census Bureau.

Which county has the lowest uninsured rate, ages 18 to 64 (US model-based estimate)?

Sagadahoc County, with 13.3% in 2013.

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, ages 18 to 64, all races, both sexes, all income levels, states and counties. Retrieved 2026-10-12.

Uninsured rate, ages 18 to 64 (US model-based estimate): other rankings

Counties in Maine: more rankings