- Galga
- Garraside
- Garrik Bore
- Gawler
- Gawler Belt
- Gawler River
- Gawler View
- Geegeela
- Gemini Downs
- Gemmells
- Georgetown
- Geranium
- Geranium Plain
- German Creek
- Gifford Hill
- Giles Corner
- Gillentown
- Gladstone
- Glenburnie
- Glencoe
- Glencoe West
- Glendoline
- Glenelg, South
- Glengyle
- Glenroy
- Glenroy Estate
- Gluyas
- Goat Island
- Gomersal
- Good Hope Landing