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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 10.04K people in New Hampshire with British ancestry. Among all New Hampshire counties, Rockingham County had the highest population with British ancestry (2.50K), followed by Hillsborough County (2.23K), and Merrimack County (1.50K).

The chart and table below shows the top 10 counties with high number of people with British 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 British Ancestry in 2021
Rockingham County
Hillsborough 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 British Ancestry in 2021
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Rank County Population
1 Rockingham County 2502
2 Hillsborough County 2232
3 Merrimack County 1495
4 Strafford County 1175
5 Grafton County 786
6 Cheshire County 630
7 Belknap County 374
8 Carroll County 348
9 Sullivan County 330
10 Coos County 168