Massachusetts Population By County in 2018
Updated on January 29, 2024.
According to the US Census Bureau population estimates, there were 6,885,720 people living in Massachusetts in 2018. Middlesex County was the most populated county with 1,608,509 residents, followed by Worcester County with 828,644 residents, and Suffolk County with 804,023 residents. Nantucket County with a population of 11,118 was the least populated county in Massachusetts in 2018.
Use the map below to interactively explore the population for each county in Massachusetts in 2018. The data can also be explored further by sorting and filtering with the table below.
You can see similar information for other states and by state for the United States.
Related Topics: Massachusetts Census Vintage Data Topic List.
Data Source: US Census Bureau (Vintage).
See this for other years:
Massachusetts Population By County in 2018
Table of Massachusetts Population By County in 2018
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| County | Population | % of State Population |
|---|---|---|
| Barnstable | 213,779 | 3.11% |
| Berkshire | 126,146 | 1.83% |
| Bristol | 564,780 | 8.20% |
| Dukes | 17,459 | 0.25% |
| Essex | 788,823 | 11.46% |
| Franklin | 70,722 | 1.03% |
| Hampden | 468,075 | 6.80% |
| Hampshire | 161,126 | 2.34% |
| Middlesex | 1,608,509 | 23.36% |
| Nantucket | 11,118 | 0.16% |
| Norfolk | 703,628 | 10.22% |
| Plymouth | 518,888 | 7.54% |
| Suffolk | 804,023 | 11.68% |
| Worcester | 828,644 | 12.03% |