12 cities
| City | County | 2026 Pop. ↓ |
|---|---|---|
| Goffstown | Hillsborough County | 18,462 |
| Gilford | Belknap County | 7,928 |
| Greenland | Rockingham County | 4,170 |
| Gilmanton | Belknap County | 4,074 |
| Grantham | Sullivan County | 3,485 |
| Gorham | Coos County | 2,661 |
| Greenville | Hillsborough County | 2,011 |
| Greenfield | Hillsborough County | 1,722 |
| Grafton | Grafton County | 1,416 |
| Goshen | Sullivan County | 804 |
| Gilsum | Cheshire County | 790 |
| Groton | Grafton County | 603 |