| City | County | 2026 Pop. ↓ |
|---|---|---|
| Manchester | Hillsborough County | 117,453 |
| Merrimack | Hillsborough County | 30,062 |
| Milford | Hillsborough County | 16,840 |
| Meredith | Belknap County | 6,867 |
| Moultonborough | Carroll County | 5,338 |
| Milton | Strafford County | 4,543 |
| Madison | Carroll County | 2,731 |
| Mont Vernon | Hillsborough County | 2,715 |
| Marlborough | Cheshire County | 2,218 |
| Madbury | Strafford County | 1,908 |
| Middleton | Strafford County | 1,874 |
| Mason | Hillsborough County | 1,463 |
| Milan | Coos County | 1,348 |
| Monroe | Grafton County | 858 |
| Marlow | Cheshire County | 774 |