- Graettinger
- Graf
- Gravity
- Gridley
- Grimes
- Grinnell
- Griswold
- Grundy Center
- Guthrie Center
- Greenfield Park Mobile Home Court
- Grandview Village Mobile Home Park
- Gambrill
- Garden City
- Gaza
- Germantown
- Gifford
- Gilliatt
- Glasgow
- Grant Center
- Gunder
- Golden Spike Mobile Home Park
- Grable
- Grant City
- Glendale Mobile Home Park
- Gravel Pit
- Great Oaks
- Green Acres
- Green Brier
- Gladstone
- Guss