Ranking of New Hampshire Counties By 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. Among all New Hampshire counties, Hillsborough County had the highest population with American ancestry (13.91K), followed by Rockingham County (13.91K), and Merrimack County (7.98K).

The chart and table below shows the top 10 counties with high number of people with 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 Population with American Ancestry in 2021
Hillsborough County
Rockingham County
Merrimack County
Strafford County
Grafton County
Belknap County
Cheshire County
Sullivan County
Carroll County
Coos County
Ranking of New Hampshire Counties By Population with American Ancestry in 2021
0 of 0
Rank County Population
1 Hillsborough County 13907
2 Rockingham County 13905
3 Merrimack County 7977
4 Strafford County 6209
5 Grafton County 4373
6 Belknap County 3454
7 Cheshire County 3282
8 Sullivan County 2463
9 Carroll County 2296
10 Coos County 1805