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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 669 people in New Hampshire with Celtic ancestry. Among all New Hampshire counties, Strafford County had the highest population with Celtic ancestry (157), followed by Carroll County (156), and Rockingham County (133).

The chart and table below shows the top 10 counties with high number of people with Celtic 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 Celtic Ancestry in 2021
Strafford County
Carroll County
Rockingham County
Hillsborough County
Grafton County
Belknap County
Merrimack County
Sullivan County
Cheshire County
Coos County
Ranking of New Hampshire Counties By Population with Celtic Ancestry in 2021
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Rank County Population
1 Strafford County 157
2 Carroll County 156
3 Rockingham County 133
4 Hillsborough County 89
5 Grafton County 76
6 Belknap County 20
7 Merrimack County 12
8 Sullivan County 11
9 Cheshire County 8
10 Coos County 7