RANKING · 2020 CENSUS · 14 SHOWN OF 14

Largest Welsh population, Massachusetts counties · 2020

Massachusetts counties ranked by the number of residents who are Welsh 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.

Welsh 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

RANKPLACESTATEPOPWELSH POPULATIONVS 2010

01Middlesex County, MAMA1,669,9797,529+14%

02Worcester County, MAMA888,5022,666−14%

03Essex County, MAMA826,6532,496−15%

04Norfolk County, MAMA739,7492,156−14%

05Suffolk County, MAMA791,8912,029−6%

06Plymouth County, MAMA546,8291,719−20%

07Hampshire County, MAMA164,0651,248+20%

08Barnstable County, MAMA233,5391,193−26%

09Bristol County, MAMA593,6401,015−25%

10Hampden County, MAMA464,338892−27%

11Berkshire County, MAMA128,224815+13%

12Franklin County, MAMA70,698500−30%

13Nantucket County, MAMA14,758130+49%

14Dukes County, MAMA21,21944−71%

SHOWING 1–14 OF 14

Download CSV (full list, 14 rows)

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