Ranking of New Hampshire Cities and Places 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 cities and places with a population of at least 10K, Claremont city had the highest percentage of its population with Welsh ancestry (2.02%), followed by Londonderry CDP (1.45%), and Somersworth city (1.24%).

The chart and table below shows the top 10 cities 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 Cities and Places By Percentage of Population with Welsh Ancestry in 2021
Claremont city
Londonderry CDP
Somersworth city
Durham CDP
Concord city
Rochester city
Lebanon city
Portsmouth city
Derry CDP
Manchester city
Ranking of New Hampshire Cities and Places By Percentage of Population with Welsh Ancestry in 2021
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Rank Ciy or Place Percentage of Pop. (%)
1 Claremont city 2.02
2 Londonderry CDP 1.45
3 Somersworth city 1.24
4 Durham CDP 1.15
5 Concord city 0.88
6 Rochester city 0.81
7 Lebanon city 0.79
8 Portsmouth city 0.78
9 Derry CDP 0.68
10 Manchester city 0.63
11 Laconia city 0.62
12 Keene city 0.49
13 Dover city 0.43
14 Nashua city 0.34