RANKING · 2020 CENSUS · 14 SHOWN OF 14

Largest American population, Massachusetts counties · 2020

Massachusetts counties ranked by the number of residents who are American ancestry, from the 2020 American Community Survey detailed-origin tables. Each list covers the full eligible universe; download the complete data as CSV. This list covers the 14 counties in Massachusetts that qualify, ranked against each other statewide.

American ancestry: full group profile →

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SAME RANKING BYCities States Metros

RELATEDHighest American population share Largest Arab population Highest Arab population share Largest Egyptian population Highest Egyptian population share Largest Iraqi population

YEAR2010 2020 2024

RANKPLACESTATEPOPAMERICAN POPULATIONVS 2010

01Middlesex County, MAMA1,669,97954,385+26%

02Worcester County, MAMA888,50252,251+108%

03Norfolk County, MAMA739,74929,394+43%

04Essex County, MAMA826,65322,689−15%

05Plymouth County, MAMA546,82922,328+23%

06Hampden County, MAMA464,33819,885+66%

07Suffolk County, MAMA791,89118,692+34%

08Bristol County, MAMA593,64016,442+23%

09Barnstable County, MAMA233,5398,928−64%

10Hampshire County, MAMA164,0657,534+84%

11Berkshire County, MAMA128,2245,397+37%

12Franklin County, MAMA70,6983,074+9%

13Nantucket County, MAMA14,758614−47%

14Dukes County, MAMA21,219499−69%

SHOWING 1–14 OF 14

Download CSV (full list, 14 rows)

UPDATED 2026-07-15 · DATA: US CENSUS BUREAU DECENNIAL CENSUS