Ranking of Massachusetts Counties By Population with Other Groups Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 1.65M people in Massachusetts with Other Groups ancestry. Among all Massachusetts counties, Middlesex County had the highest population with Other Groups ancestry (401.63K), followed by Suffolk County (311.02K), and Essex County (221.86K).

The chart and table below shows the top 10 counties with high number of people with Other Groups 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 Other Groups Ancestry in 2021
Middlesex County
Suffolk County
Essex County
Worcester County
Norfolk County
Hampden County
Bristol County
Plymouth County
Barnstable County
Hampshire County
Ranking of Massachusetts Counties By Population with Other Groups Ancestry in 2021
0 of 0
Rank County Population
1 Middlesex County 401625
2 Suffolk County 311023
3 Essex County 221860
4 Worcester County 172433
5 Norfolk County 160418
6 Hampden County 151515
7 Bristol County 84480
8 Plymouth County 61415
9 Barnstable County 24858
10 Hampshire County 24419
11 Berkshire County 21380
12 Franklin County 9045
13 Nantucket County 2142
14 Dukes County 2122