RANKING · 2024 ACS · 16 SHOWN OF 16

Highest uninsured rate, Maine counties

Maine counties ranked by the share of residents without health insurance (2024 ACS). This list covers the 16 counties in Maine that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros ZIP codes

RELATEDLargest foreign-born population Most residents with a disability Largest veteran population Most uninsured people Largest senior population Most unmarried people

YEAR2020 2024

RANKPLACESTATEPOPUNINSUREDVS 2020

01Piscataquis County, MEME17,40910.1%−14%

02Hancock County, MEME57,1719.6%−6%

03Waldo County, MEME40,6939.2%−21%

04Washington County, MEME31,3349.1%−22%

05Oxford County, MEME60,3468.6%+4%

06Aroostook County, MEME66,6098.0%−5%

07Franklin County, MEME30,8247.9%−23%

08Somerset County, MEME51,6207.5%−19%

09Lincoln County, MEME36,5956.6%−33%

10Penobscot County, MEME157,9676.3%−24%

11Androscoggin County, MEME116,4875.9%−25%

12Kennebec County, MEME129,0675.8%−23%

13Knox County, MEME41,1175.5%−29%

14Sagadahoc County, MEME37,9795.3%−27%

15York County, MEME222,4344.8%−17%

16Cumberland County, MEME317,2224.7%−18%

SHOWING 1–16 OF 16

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES