Ranking of Massachusetts Counties By Percentage of 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 (0.34% of Massachusetts population). Among all Massachusetts counties, Hampshire County had the highest percentage of its population with Welsh ancestry (0.79%), followed by Nantucket County (0.77%), and Franklin County (0.75%).

The chart and table below shows the top 10 counties with high percentage of its population having 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 Percentage of Population with Welsh Ancestry in 2021
Hampshire County
Nantucket County
Franklin County
Dukes County
Berkshire County
Middlesex County
Barnstable County
Plymouth County
Essex County
Norfolk County
Ranking of Massachusetts Counties By Percentage of Population with Welsh Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Hampshire County 0.79
2 Nantucket County 0.77
3 Franklin County 0.75
4 Dukes County 0.62
5 Berkshire County 0.58
6 Middlesex County 0.44
7 Barnstable County 0.39
8 Plymouth County 0.31
9 Essex County 0.30
10 Norfolk County 0.29
10 Worcester County 0.29
11 Suffolk County 0.25
12 Hampden County 0.21
13 Bristol County 0.20