Massachusetts Counties by Population

The most populated counties in Massachusetts are Middlesex County with 1,623,109, Worcester County at 858,898, Essex County with 806,103, Suffolk County at 785,443, and Norfolk County with 722,112. You can get the most current Census population data for all 14 Massachusetts counties, sorted from the most populous counties in Massachusetts to the least, according to the 2022 American Community Survey.

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Rank County Population
1 Middlesex County 1,623,109
2 Worcester County 858,898
3 Essex County 806,103
4 Suffolk County 785,443
5 Norfolk County 722,112
6 Bristol County 576,699
7 Plymouth County 529,548
8 Hampden County 464,575
9 Barnstable County 229,436
10 Hampshire County 153,931
11 Berkshire County 128,763
12 Franklin County 70,980
13 Dukes County 20,543
14 Nantucket County 14,065

United States Census Bureau. B01001 SEX BY AGE, 2022 American Community Survey 5-Year Estimates. U.S. Census Bureau, American Community Survey Office. Web. 7 December 2023.


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