RANKING · 2020 CENSUS · 14 SHOWN OF 14

Highest Scotch-Irish population share, Massachusetts counties · 2020

Massachusetts counties ranked by the share of all residents who are Scotch-Irish ancestry (2020 American Community Survey). A concentration measure: Scotch-Irish residents as a percentage of total population. This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide.

Scotch-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

RANKPLACESTATEPOPSCOTCH-IRISH SHAREVS 2010

01Franklin County, MAMA70,6981.2%−0.9 pts

02Barnstable County, MAMA233,5391.1%−1.0 pts

03Nantucket County, MAMA14,7581.0%−2.0 pts

04Plymouth County, MAMA546,8290.9%−2.2 pts

05Hampshire County, MAMA164,0650.8%−1.5 pts

06Dukes County, MAMA21,2190.8%−1.6 pts

07Middlesex County, MAMA1,669,9790.7%−1.3 pts

08Essex County, MAMA826,6530.7%−1.3 pts

09Berkshire County, MAMA128,2240.6%−1.4 pts

10Norfolk County, MAMA739,7490.6%−1.8 pts

11Worcester County, MAMA888,5020.6%−1.2 pts

12Hampden County, MAMA464,3380.4%−0.9 pts

13Bristol County, MAMA593,6400.4%−1.0 pts

14Suffolk County, MAMA791,8910.3%−0.7 pts

SHOWING 1–14 OF 14

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UPDATED 2026-08-08 · DATA: US CENSUS BUREAU DECENNIAL CENSUS