RANKING · 2024 ACS · 16 SHOWN OF 16

Highest Scotch-Irish population share, Maine counties

Maine counties ranked by the share of all residents who are Scotch-Irish ancestry (2024 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 16 counties in Maine that qualify, ranked against each other statewide.

Scotch-Irish Americans: full group profile →

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

YEAR2010 2020 2024

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2010

01Knox County, MEME41,1172.7%−0.6 pts

02Waldo County, MEME40,6931.7%−3.5 pts

03Washington County, MEME31,3341.6%−3.1 pts

04Penobscot County, MEME157,9671.6%−3.0 pts

05Cumberland County, MEME317,2221.6%−2.2 pts

06York County, MEME222,4341.5%−2.0 pts

07Sagadahoc County, MEME37,9791.4%−2.4 pts

08Kennebec County, MEME129,0671.4%−2.4 pts

09Piscataquis County, MEME17,4091.3%−1.7 pts

10Lincoln County, MEME36,5951.2%−2.1 pts

11Hancock County, MEME57,1711.2%−2.8 pts

12Oxford County, MEME60,3461.2%−2.4 pts

13Androscoggin County, MEME116,4871.0%−2.0 pts

14Aroostook County, MEME66,6090.9%−2.3 pts

15Franklin County, MEME30,8240.8%−1.8 pts

16Somerset County, MEME51,6200.7%−2.6 pts

SHOWING 1–16 OF 16

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU ACS 5-YEAR ESTIMATES