RANKING · 2010 CENSUS · 16 SHOWN OF 16

Highest Scotch-Irish population share, Maine counties · 2010

Maine counties ranked by the share of all residents who are Scotch-Irish ancestry (2023 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.

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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 2000

01Waldo County, MEME40,6935.2%–

02Washington County, MEME31,3344.7%–

03Penobscot County, MEME157,9674.5%–

04Hancock County, MEME57,1714.0%–

05Kennebec County, MEME129,0673.9%–

06Sagadahoc County, MEME37,9793.8%–

07Cumberland County, MEME317,2223.8%–

08Oxford County, MEME60,3463.6%–

09York County, MEME222,4343.5%–

10Somerset County, MEME51,6203.3%–

11Knox County, MEME41,1173.3%–

12Lincoln County, MEME36,5953.3%–

13Aroostook County, MEME66,6093.2%–

14Piscataquis County, MEME17,4093.0%–

15Androscoggin County, MEME116,4873.0%–

16Franklin County, MEME30,8242.5%–

SHOWING 1–16 OF 16

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