Ranking of Massachusetts Counties By Population in 2024

Updated on June 21, 2025.

Based on the US Census Vintage data estimates, in 2024, the Population for Massachusetts was 7.14M. Among all Massachusetts counties, Middlesex County had the highest population (1.67M), followed by Worcester County (881.25K), and Essex County (823.94K).

The chart below shows the top 10 counties, and the table below shows the ranking of all Massachusetts counties.

You can see similar ranking information for related topics, and for other states. You can also see the ranking of all counties in the United States.

See this for other years:
Ranking of Massachusetts Counties By Population in 2024
Middlesex
Worcester
Essex
Suffolk
Norfolk
Bristol
Plymouth
Hampden
Barnstable
Hampshire
Ranking of Massachusetts Counties By Population in 2024
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Rank County Population
1 Middlesex County 1668956
2 Worcester County 881248
3 Essex County 823938
4 Suffolk County 793144
5 Norfolk County 740754
6 Bristol County 588593
7 Plymouth County 542090
8 Hampden County 464151
9 Barnstable County 232570
10 Hampshire County 165399
11 Berkshire County 128726
12 Franklin County 70871
13 Dukes County 21061
14 Nantucket County 14670