RANKING · 2024 ACS · 16 SHOWN OF 16

Most foreign-born residents, Maine counties

Maine counties ranked by the share of residents born outside the US (2024 ACS). This list covers the 16 counties in Maine that qualify, ranked against each other statewide. The median across all 16 is 3.1%. Biggest climber in the top 100 since 2020: Franklin County, ME, up 5 places to #9.

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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

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORNVS 2010

01Cumberland County, MEME317,2226.7%+1.2 pts

02▲2Androscoggin County, MEME116,4875.6%+2.2 pts

03▼1Aroostook County, MEME66,6094.1%−0.8 pts

04▲1York County, MEME222,4344.0%+0.9 pts

05▼2Washington County, MEME31,3343.7%−0.3 pts

06▲2Penobscot County, MEME157,9673.4%+0.7 pts

07Hancock County, MEME57,1713.3%+1.0 pts

08▲1Knox County, MEME41,1173.1%+1.1 pts

09▲5Franklin County, MEME30,8242.7%+0.7 pts

10▼4Sagadahoc County, MEME37,9792.5%0.0 pts

11Kennebec County, MEME129,0672.4%+0.1 pts

12Waldo County, MEME40,6932.3%+1.1 pts

13Piscataquis County, MEME17,4092.3%+0.6 pts

14▼4Lincoln County, MEME36,5952.2%+0.4 pts

15Somerset County, MEME51,6201.5%−0.3 pts

16Oxford County, MEME60,3461.4%−0.2 pts

SHOWING 1–16 OF 16

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES