Ranking of New Hampshire 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 New Hampshire (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 377,035. Among all New Hampshire counties, Hillsborough County had the highest population (aged 25 years and above) with an educational attainment of Bachelors or Higher (118,559), followed by Rockingham County (98,141), and Merrimack County (39,362).
The chart below shows the top 10 New Hampshire counties, and the table below shows the ranking of all New Hampshire 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: New Hampshire ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census - ACS 5-Year Estimates.
Ranking of New Hampshire 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 | Hillsborough County | 118559 |
| 2 | Rockingham County | 98141 |
| 3 | Merrimack County | 39362 |
| 4 | Strafford County | 31864 |
| 5 | Grafton County | 27392 |
| 6 | Cheshire County | 17841 |
| 7 | Belknap County | 14799 |
| 8 | Carroll County | 14668 |
| 9 | Sullivan County | 9549 |
| 10 | Coos County | 4860 |