12 cities
| City | County | 2025 Pop. ↓ |
|---|---|---|
| Goffstown | Hillsborough County | 18,475 |
| Gilford | Belknap County | 7,907 |
| Greenland | Rockingham County | 4,148 |
| Gilmanton | Belknap County | 4,073 |
| Grantham | Sullivan County | 3,484 |
| Gorham | Coos County | 2,667 |
| Greenville | Hillsborough County | 2,008 |
| Greenfield | Hillsborough County | 1,709 |
| Grafton | Grafton County | 1,415 |
| Goshen | Sullivan County | 807 |
| Gilsum | Cheshire County | 788 |
| Groton | Grafton County | 595 |