RANKING · 2024 ACS · 16 SHOWN OF 16

Highest Irish population share, Maine counties

Maine counties ranked by the share of all residents who are Irish ancestry (2023 American Community Survey). A concentration measure: Irish residents as a percentage of total population. This list covers the 16 counties in Maine that qualify, ranked against each other statewide.

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SAME RANKING BYCities States Metros

RELATEDLargest American population Highest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share

YEAR2010 2020 2024

RANKPLACESTATEPOPIRISH SHAREVS 2000

01Cumberland County, MEME317,22219.2%–

02York County, MEME222,43418.9%–

03Hancock County, MEME57,17116.9%–

04Waldo County, MEME40,69316.2%–

05Kennebec County, MEME129,06715.5%–

06Penobscot County, MEME157,96715.4%–

07Somerset County, MEME51,62015.4%–

08Oxford County, MEME60,34615.2%–

09Sagadahoc County, MEME37,97914.9%–

10Piscataquis County, MEME17,40914.7%–

11Lincoln County, MEME36,59514.6%–

12Androscoggin County, MEME116,48714.6%–

13Franklin County, MEME30,82414.3%–

14Knox County, MEME41,11713.4%–

15Aroostook County, MEME66,60913.2%–

16Washington County, MEME31,33413.1%–

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UPDATED 2026-06-06 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES