Ranking of Massachusetts Counties By Percentage of Population with European Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 85.84K people in Massachusetts with European ancestry (1.23% of Massachusetts population). Among all Massachusetts counties, Franklin County had the highest percentage of its population with European ancestry (1.99%), followed by Dukes County (1.69%), and Middlesex County (1.62%).

The chart and table below shows the top 10 counties with high percentage of its population having European 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 European Ancestry in 2021
Franklin County
Dukes County
Middlesex County
Hampshire County
Barnstable County
Norfolk County
Nantucket County
Berkshire County
Worcester County
Essex County
Ranking of Massachusetts Counties By Percentage of Population with European Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Franklin County 1.99
2 Dukes County 1.69
3 Middlesex County 1.62
4 Hampshire County 1.59
5 Barnstable County 1.55
6 Norfolk County 1.51
7 Nantucket County 1.46
8 Berkshire County 1.41
9 Worcester County 1.18
10 Essex County 1.17
11 Suffolk County 1.15
12 Plymouth County 0.93
13 Hampden County 0.55
14 Bristol County 0.48