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.

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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%+21%

02Androscoggin County, MEME116,4875.6%+67%

03Aroostook County, MEME66,6094.1%−16%

04York County, MEME222,4344.0%+28%

05Washington County, MEME31,3343.7%−8%

06Penobscot County, MEME157,9673.4%+25%

07Hancock County, MEME57,1713.3%+43%

08Knox County, MEME41,1173.1%+55%

09Franklin County, MEME30,8242.7%+34%

10Sagadahoc County, MEME37,9792.5%−1%

11Kennebec County, MEME129,0672.4%+5%

12Waldo County, MEME40,6932.3%+85%

13Piscataquis County, MEME17,4092.3%+38%

14Lincoln County, MEME36,5952.2%+20%

15Somerset County, MEME51,6201.5%−19%

16Oxford County, MEME60,3461.4%−11%

SHOWING 1–16 OF 16

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