- Gansy Island
- Gardners Grove
- Gate Island
- Gates Corner
- Gateway Trailer Park
- Gaza
- Gee Mill
- Georges
- Georges Mills
- Gerrish
- Gerrish Corner
- Gerrish Isle
- Gibson Four Corners
- Gilboa
- Gilford
- Gilman Mobile Park
- Gilmans Corner
- Gilmanton
- Gilmanton Ironworks
- Gilsum
- Glen
- Glen House
- Glencliff
- Glendale
- Glenmere Village
- Glidden Island
- Glines Island
- Goat Island
- Goat Island
- Goffs Falls