RANKING · 2020 CENSUS · 16 SHOWN OF 16

Highest uninsured rate, Maine counties · 2020

Maine counties ranked by the share of residents without health insurance (2020 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 –

01Piscataquis County, MEME17,40911.8%–

02Waldo County, MEME40,69311.6%–

03Washington County, MEME31,33411.6%–

04Franklin County, MEME30,82410.3%–

05Hancock County, MEME57,17110.2%–

06Lincoln County, MEME36,5959.9%–

07Somerset County, MEME51,6209.3%–

08Aroostook County, MEME66,6098.4%–

09Oxford County, MEME60,3468.3%–

10Penobscot County, MEME157,9678.3%–

11Androscoggin County, MEME116,4877.9%–

12Knox County, MEME41,1177.7%–

13Kennebec County, MEME129,0677.5%–

14Sagadahoc County, MEME37,9797.3%–

15York County, MEME222,4345.8%–

16Cumberland County, MEME317,2225.7%–

SHOWING 1–16 OF 16

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UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS