Ranking of Massachusetts Counties By Population Aged 25 years and above with an Educational attainment of Bachelors or Higher in 2021 (ACS-5Yrs)
Updated on September 3, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, the population of Massachusetts (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 2,216,349. Among all Massachusetts counties, Middlesex County had the highest population (aged 25 years and above) with an educational attainment of Bachelors or Higher (659,984), followed by Norfolk County (281,499), and Suffolk County (266,176).
The chart below shows the top 10 Massachusetts counties, and the table below shows the ranking of all Massachusetts counties.
You can see similar information for other educational attainments.
You can also see similar information for other states and for the United States.
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Related Topics: Massachusetts ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of Massachusetts Counties By Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
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| Rank | County | Number of People |
|---|---|---|
| 1 | Middlesex County | 659984 |
| 2 | Norfolk County | 281499 |
| 3 | Suffolk County | 266176 |
| 4 | Essex County | 230608 |
| 5 | Worcester County | 226111 |
| 6 | Plymouth County | 145456 |
| 7 | Bristol County | 118733 |
| 8 | Hampden County | 89906 |
| 9 | Barnstable County | 79930 |
| 10 | Hampshire County | 50304 |
| 11 | Berkshire County | 34347 |
| 12 | Franklin County | 20952 |
| 13 | Dukes County | 7164 |
| 14 | Nantucket County | 5179 |