Data / Rankings / Bachelor's degree or higher, population 25 and over / Counties in New Hampshire

Counties in New Hampshire by share of adults with a bachelor's degree

Rockingham County had the highest share of adults with a bachelor's degree of 10 counties in 2021, at 42.8%. Coos County had the lowest, at 20%. The median was 36.4% and the figure for New Hampshire was 38.2%. Source: the U.S. Census Bureau.

Highest42.8Rockingham County
Lowest20Coos County
Median36.410 counties
New Hampshire38.2History

All counties, 2021

CSVChart (SVG)

Rockingham CountyRockingham County: 42.8 %42.8Grafton CountyGrafton County: 42.6 %42.6Hillsborough CountyHillsborough County: 39.6 %39.6Carroll CountyCarroll County: 37.4 %37.4Strafford CountyStrafford County: 36.9 %36.9Merrimack CountyMerrimack County: 35.8 %35.8Cheshire CountyCheshire County: 33.1 %33.1Belknap CountyBelknap County: 31.2 %31.2Sullivan CountySullivan County: 29.6 %29.6Coos CountyCoos County: 20 %20
%. Source: Invokely calculation with data from U.S. Census Bureau. Retrieved 2026-10-09.

Full ranking

RankCounties2021 (%)
1Rockingham County42.8
2Grafton County42.6
3Hillsborough County39.6
4Carroll County37.4
5Strafford County36.9
6Merrimack County35.8
7Cheshire County33.1
8Belknap County31.2
9Sullivan County29.6
10Coos County20

Other periods

About this ranking

People aged 25 and over whose highest degree is a bachelor's, master's, professional school or doctorate degree, as a percentage of all people aged 25 and over. United States: American Community Survey five-year estimate, where the period shown is the last year of the five-year span.

Excludes associate degrees and college without a degree. Not comparable with EU tertiary attainment, which includes short-cycle tertiary education and usually covers ages 25 to 64. Calculated from counts in ACS table B15003, which are stored as inputs.

Every value in the ranking comes from the same publisher and the same period, so the counties are compared on one definition. Equal values share a rank.

How to cite

U.S. Census Bureau. American Community Survey 5-year estimates, table B15003: population 25 years and over with a bachelor's degree or higher as a percentage of the population 25 years and over, calculated with stored inputs. https://www2.census.gov/programs-surveys/acs/summary_file/2021/table-based-SF/data/5YRData/acsdt5y2021-b15003.dat. Retrieved 2026-10-09.

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Rank Counties in New Hampshire by share of adults with a bachelor's degree using official data, and cite the source.
rank_places {"indicator":"bachelors_degree_share","level":"province","within":"New Hampshire","limit":10}
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Questions

Which county has the highest share of adults with a bachelor's degree?

Rockingham County, with 42.8% in 2021, according to the U.S. Census Bureau.

Which county has the lowest share of adults with a bachelor's degree?

Coos County, with 20% in 2021.

Where does this ranking come from?

Every value comes from one source and one period, so the places are comparable: U.S. Census Bureau, American Community Survey 5-year estimates, table B15003: population 25 years and over with a bachelor's degree or higher as a percentage of the population 25 years and over, calculated with stored inputs. Retrieved 2026-10-09.

Bachelor's degree or higher, population 25 and over: other rankings

Counties in New Hampshire: more rankings