RANKING · 2010 CENSUS · 16 SHOWN OF 16

Highest Irish population share, Maine counties · 2010

Maine counties ranked by the share of all residents who are Irish ancestry (2010 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. The median across all 16 is 17.0%.

Irish Americans: full group profile →

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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 –

01Cumberland County, MEME317,22221.1%–

02York County, MEME222,43419.3%–

03Knox County, MEME41,11719.0%–

04Lincoln County, MEME36,59517.7%–

05Aroostook County, MEME66,60917.4%–

06Penobscot County, MEME157,96717.2%–

07Waldo County, MEME40,69317.1%–

08Kennebec County, MEME129,06717.0%–

09Washington County, MEME31,33417.0%–

10Sagadahoc County, MEME37,97916.8%–

11Piscataquis County, MEME17,40916.5%–

12Somerset County, MEME51,62015.8%–

13Androscoggin County, MEME116,48715.5%–

14Hancock County, MEME57,17115.2%–

15Oxford County, MEME60,34614.8%–

16Franklin County, MEME30,82414.2%–

SHOWING 1–16 OF 16

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UPDATED 2026-09-11 · DATA: US CENSUS BUREAU DECENNIAL CENSUS