RANKING · 2020 CENSUS · 16 SHOWN OF 16

Most foreign-born residents, Maine counties · 2020

Maine counties ranked by the share of residents born outside the US (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

YEAR2010 2020 2024

RANKPLACESTATEPOPFOREIGN-BORNVS 2010

01Cumberland County, MEME317,2226.0%+9%

02Aroostook County, MEME66,6094.0%−18%

03Washington County, MEME31,3343.7%−6%

04Androscoggin County, MEME116,4873.5%+5%

05York County, MEME222,4343.5%+13%

06Sagadahoc County, MEME37,9793.5%+38%

07Hancock County, MEME57,1713.3%+40%

08Penobscot County, MEME157,9672.9%+7%

09Knox County, MEME41,1172.6%+28%

10Lincoln County, MEME36,5952.4%+30%

11Kennebec County, MEME129,0672.3%−2%

12Waldo County, MEME40,6932.1%+69%

13Piscataquis County, MEME17,4092.1%+24%

14Franklin County, MEME30,8241.8%−10%

15Somerset County, MEME51,6201.7%−6%

16Oxford County, MEME60,3461.6%+1%

SHOWING 1–16 OF 16

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