RANKING · 2010 CENSUS · 16 SHOWN OF 16

Most population lost, Maine counties · 2010

Maine counties that lost the most residents from the 2000 census to 2010, by raw count of people rather than percentage. This list covers the 16 counties in Maine that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

YEAR2000 2010 2020 2025

RANKPLACESTATEPOPPOPULATION CHANGEVS 2000

01Aroostook County, MEME66,609-2,068−84%

02Washington County, MEME31,334-1,085−21%

03Sagadahoc County, MEME37,979+79−95%

04Knox County, MEME41,117+118−96%

05Piscataquis County, MEME17,409+300−121%

06Lincoln County, MEME36,595+841−74%

07Franklin County, MEME30,824+1,301+183%

08Somerset County, MEME51,620+1,340+20%

09Waldo County, MEME40,693+2,506−23%

10Hancock County, MEME57,171+2,627−46%

11Oxford County, MEME60,346+3,078+43%

12Androscoggin County, MEME116,487+3,909−367%

13Kennebec County, MEME129,067+5,037+316%

14Penobscot County, MEME157,967+9,004−635%

15York County, MEME222,434+10,389−53%

16Cumberland County, MEME317,222+16,062−29%

SHOWING 1–16 OF 16

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