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

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 59.67K people in New Hampshire with American ancestry (4.35% of New Hampshire population). Among all New Hampshire counties, Coos County had the highest percentage of its population with American ancestry (5.76%), followed by Sullivan County (5.71%), and Belknap County (5.45%).

The chart and table below shows the top 10 counties with high percentage of its population having American 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 American Ancestry in 2021
Coos County
Sullivan County
Belknap County
Merrimack County
Grafton County
Strafford County
Carroll County
Rockingham County
Cheshire County
Hillsborough County
Ranking of New Hampshire Counties By Percentage of Population with American Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Coos County 5.76
2 Sullivan County 5.71
3 Belknap County 5.45
4 Merrimack County 5.21
5 Grafton County 4.80
6 Strafford County 4.75
7 Carroll County 4.60
8 Rockingham County 4.45
9 Cheshire County 4.29
10 Hillsborough County 3.31