- Greenvale Village
- Grimes
- Gristmill Hill
- Gateway Mobile Home Park
- Glass Hill
- Green Forest Estates
- Green Hill
- Green Hill Village
- Green Meadows Mobile Home Park
- Greenland
- Greenlawn
- Greenwood Manor
- Grenada Manor
- Gum Swamp
- Gambage Island
- Genezer Estates
- George Island Landing
- Germantown
- Golf Club Shores
- Goodwill
- Grassy Island (historical)
- Grays Corner
- Great Egging Island
- Green Ridge Mobile Home Park
- Greenwood Place
- Grantsville
- Green Valley
- Goldsboro
- Greensboro
- Gaithersburg