Ranking of New Hampshire Counties By 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. Among all New Hampshire counties, Hillsborough County had the highest population with Welsh ancestry (2.29K), followed by Rockingham County (2.13K), and Merrimack County (1.25K).

The chart and table below shows the top 10 counties with high number of people with 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 Population with Welsh Ancestry in 2021
Hillsborough County
Rockingham County
Merrimack County
Strafford County
Grafton County
Carroll County
Belknap County
Cheshire County
Sullivan County
Coos County
Ranking of New Hampshire Counties By Population with Welsh Ancestry in 2021
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Rank County Population
1 Hillsborough County 2285
2 Rockingham County 2135
3 Merrimack County 1255
4 Strafford County 1110
5 Grafton County 717
6 Carroll County 535
7 Belknap County 502
8 Cheshire County 488
9 Sullivan County 443
10 Coos County 223