Fastest growing counties in New Hampshire.
County | Rank | Change (2020) | 2024 Pop. | 2020 Pop. |
|---|---|---|---|---|
| Carroll County | 1 | 4.97% | 52,742 | 50,246 |
| Belknap County | 2 | 2.47% | 65,349 | 63,776 |
| Merrimack County | 3 | 2.41% | 157,747 | 154,038 |
| Rockingham County | 4 | 2.26% | 321,745 | 314,621 |
| Sullivan County | 5 | 2.21% | 44,020 | 43,068 |
| Strafford County | 6 | 2.17% | 133,915 | 131,068 |
| Grafton County | 7 | 2.15% | 93,161 | 91,198 |
| Cheshire County | 8 | 1.82% | 77,943 | 76,547 |
| Hillsborough County | 9 | 1.02% | 427,215 | 422,913 |
| Coos County | 10 | 0.13% | 31,268 | 31,227 |