RANKING · 2010 CENSUS · 14 SHOWN OF 14

Highest Scotch-Irish population share, Massachusetts counties · 2010

Massachusetts 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 14 counties in Massachusetts 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

01Plymouth County, MAMA546,8293.1%–

02Nantucket County, MAMA14,7582.9%–

03Norfolk County, MAMA739,7492.4%–

04Dukes County, MAMA21,2192.3%–

05Hampshire County, MAMA164,0652.3%–

06Barnstable County, MAMA233,5392.2%–

07Franklin County, MAMA70,6982.0%–

08Middlesex County, MAMA1,669,9792.0%–

09Berkshire County, MAMA128,2242.0%–

10Essex County, MAMA826,6532.0%–

11Worcester County, MAMA888,5021.8%–

12Bristol County, MAMA593,6401.3%–

13Hampden County, MAMA464,3381.3%–

14Suffolk County, MAMA791,8911.0%–

SHOWING 1–14 OF 14

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