12 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Goffstown town | Hillsborough County | 18,477 |
| Gilford town | Belknap County | 7,921 |
| Gilmanton town | Belknap County | 4,183 |
| Greenland town | Rockingham County | 4,089 |
| Grantham town | Sullivan County | 3,484 |
| Gorham town | Coos County | 2,648 |
| Greenville town | Hillsborough County | 1,981 |
| Greenfield town | Hillsborough County | 1,715 |
| Grafton town | Grafton County | 1,416 |
| Goshen town | Sullivan County | 809 |
| Gilsum town | Cheshire County | 802 |
| Groton town | Grafton County | 578 |