15 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Manchester | Hillsborough County | 117,080 |
| Merrimack | Hillsborough County | 29,809 |
| Milford | Hillsborough County | 16,620 |
| Meredith | Belknap County | 6,854 |
| Moultonborough | Carroll County | 5,278 |
| Milton | Strafford County | 4,580 |
| Madison | Carroll County | 2,738 |
| Mont Vernon | Hillsborough County | 2,694 |
| Marlborough | Cheshire County | 2,219 |
| Madbury | Strafford County | 1,942 |
| Middleton | Strafford County | 1,863 |
| Mason | Hillsborough County | 1,465 |
| Milan | Coos County | 1,351 |
| Monroe | Grafton County | 869 |
| Marlow | Cheshire County | 787 |