15 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Manchester | Hillsborough County | 117,774 |
| Merrimack | Hillsborough County | 30,251 |
| Milford | Hillsborough County | 16,710 |
| Meredith | Belknap County | 6,879 |
| Moultonborough | Carroll County | 5,313 |
| Milton | Strafford County | 4,588 |
| Madison | Carroll County | 2,751 |
| Mont Vernon | Hillsborough County | 2,705 |
| Marlborough | Cheshire County | 2,245 |
| Madbury | Strafford County | 1,939 |
| Middleton | Strafford County | 1,869 |
| Mason | Hillsborough County | 1,469 |
| Milan | Coos County | 1,343 |
| Monroe | Grafton County | 869 |
| Marlow | Cheshire County | 800 |