Ranking of New Hampshire Counties By Percentage of 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 percentage of the population of New Hampshire (aged 25 years and above) who had an educational attainment of Bachelors or Higher was 38.24%. Among all New Hampshire counties, Rockingham County had the highest percentage of its population (aged 25 years and above) with an educational attainment of Bachelors or Higher (42.82%), followed by Grafton County (42.56%), and Hillsborough County (39.64%).

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.

Ranking of New Hampshire Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
Rockingham County
Grafton County
Hillsborough County
Carroll County
Strafford County
Merrimack County
Cheshire County
Belknap County
Sullivan County
Coos County
Ranking of New Hampshire Counties By Percentage of Population (Aged 25yrs+) with an Educational Attainment of Bachelors or Higher in 2021
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Rank County Percentage of Population (Aged 25yrs+) (%)
1 Rockingham County 42.82
2 Grafton County 42.56
3 Hillsborough County 39.64
4 Carroll County 37.37
5 Strafford County 36.88
6 Merrimack County 35.83
7 Cheshire County 33.06
8 Belknap County 31.21
9 Sullivan County 29.59
10 Coos County 19.98