Ranking of Massachusetts Counties By Population with Welsh Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 23.39K people in Massachusetts with Welsh ancestry. Among all Massachusetts counties, Middlesex County had the highest population with Welsh ancestry (7.07K), followed by Worcester County (2.46K), and Essex County (2.42K).

The chart and table below shows the top 10 counties with high number of people with Welsh ancestry.

You can see similar information for other states and for other ancestry groups in Massachusetts.

Data Source: US Census Bureau.
Ranking of Massachusetts Counties By Population with Welsh Ancestry in 2021
Middlesex County
Worcester County
Essex County
Norfolk County
Suffolk County
Plymouth County
Hampshire County
Bristol County
Hampden County
Barnstable County
Ranking of Massachusetts Counties By Population with Welsh Ancestry in 2021
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Rank County Population
1 Middlesex County 7073
2 Worcester County 2457
3 Essex County 2417
4 Norfolk County 2063
5 Suffolk County 1993
6 Plymouth County 1616
7 Hampshire County 1272
8 Bristol County 1124
9 Hampden County 976
10 Barnstable County 891
11 Berkshire County 745
12 Franklin County 530
13 Dukes County 125
14 Nantucket County 106