Ranking of New Hampshire Counties By Percentage of Population with Unclassified Ancestry in 2021
Updated on April 16, 2025.
Based on the US Census ACS-5Yrs estimates, in 2021, there were 250.60K people in New Hampshire with Unclassified ancestry (18.26% of New Hampshire population). Among all New Hampshire counties, Sullivan County had the highest percentage of its population with Unclassified ancestry (24.55%), followed by Coos County (21.44%), and Cheshire County (20.78%).
The chart and table below shows the top 10 counties with high percentage of its population having Unclassified ancestry.
You can see similar information for other states and for other ancestry groups in New Hampshire.
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Related Topics: New Hampshire ACS-5Yrs Estimates, 2021 Topic List.
Data Source: US Census Bureau.
Ranking of New Hampshire Counties By Percentage of Population with Unclassified Ancestry in 2021
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| Rank | County | Percentage of Pop. (%) |
|---|---|---|
| 1 | Sullivan County | 24.55 |
| 2 | Coos County | 21.44 |
| 3 | Cheshire County | 20.78 |
| 4 | Belknap County | 20.70 |
| 5 | Carroll County | 19.60 |
| 6 | Grafton County | 19.50 |
| 7 | Merrimack County | 19.31 |
| 8 | Strafford County | 19.24 |
| 9 | Hillsborough County | 16.91 |
| 10 | Rockingham County | 16.30 |
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