Ranking of New Hampshire Counties By Percentage of Population with Welsh Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 9.69K people in New Hampshire with Welsh ancestry (0.71% of New Hampshire population). Among all New Hampshire counties, Carroll County had the highest percentage of its population with Welsh ancestry (1.07%), followed by Sullivan County (1.03%), and Strafford County (0.85%).

The chart and table below shows the top 10 counties with high percentage of its population having Welsh 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 Percentage of Population with Welsh Ancestry in 2021
Carroll County
Sullivan County
Strafford County
Merrimack County
Belknap County
Grafton County
Coos County
Rockingham County
Cheshire County
Hillsborough County
Ranking of New Hampshire Counties By Percentage of Population with Welsh Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Carroll County 1.07
2 Sullivan County 1.03
3 Strafford County 0.85
4 Merrimack County 0.82
5 Belknap County 0.79
5 Grafton County 0.79
6 Coos County 0.71
7 Rockingham County 0.68
8 Cheshire County 0.64
9 Hillsborough County 0.54