- Girard
- Gird Point
- Glacier Colony
- Glasgow
- Glastonbury
- Glen
- Glendale
- Glendale Colony
- Glendive
- Glengarry
- Glentana
- Gloss Place
- Gloster
- Gold Butte
- Goldcreek
- Golden Age Village Trailer Park
- Golden Ridge
- Golden Valley Colony
- Goldstone
- Goose Island
- Gordon
- Gorus
- Government Island
- Grace
- Grahams Place
- Grand Island
- Granite
- Grannis
- Grant
- Grantsdale