Ranking of New Hampshire Counties By Population with European Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 19.28K people in New Hampshire with European ancestry. Among all New Hampshire counties, Hillsborough County had the highest population with European ancestry (5.96K), followed by Rockingham County (4.18K), and Merrimack County (1.98K).

The chart and table below shows the top 10 counties with high number of people with European ancestry.

You can see similar information for other states and for other ancestry groups in New Hampshire.

Data Source: US Census Bureau.
Ranking of New Hampshire Counties By Population with European Ancestry in 2021
Hillsborough County
Rockingham County
Merrimack County
Strafford County
Grafton County
Cheshire County
Belknap County
Carroll County
Sullivan County
Coos County
Ranking of New Hampshire Counties By Population with European Ancestry in 2021
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Rank County Population
1 Hillsborough County 5963
2 Rockingham County 4185
3 Merrimack County 1976
4 Strafford County 1963
5 Grafton County 1697
6 Cheshire County 1494
7 Belknap County 756
8 Carroll County 725
9 Sullivan County 305
10 Coos County 218