18 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Hudson | Hillsborough County | 25,969 |
| Hampton | Rockingham County | 16,467 |
| Hooksett | Merrimack County | 15,495 |
| Hanover | Grafton County | 11,988 |
| Hampstead | Rockingham County | 9,185 |
| Hollis | Hillsborough County | 8,768 |
| Henniker | Merrimack County | 6,287 |
| Hopkinton | Merrimack County | 6,206 |
| Hillsborough | Hillsborough County | 6,190 |
| Haverhill | Grafton County | 4,643 |
| Hinsdale | Cheshire County | 4,047 |
| Hampton Falls | Rockingham County | 2,399 |
| Holderness | Grafton County | 2,032 |
| Hancock | Hillsborough County | 1,754 |
| Hill | Merrimack County | 1,058 |
| Harrisville | Cheshire County | 1,006 |
| Hebron | Grafton County | 651 |
| Hart's Location | Carroll County | 65 |