- Gardiner (Population: 6,198)
- Georgetown (Population: 1,020)
- Glenburn (Population: 3,964)
- Gorham (Population: 14,141)
- Gouldsboro (Population: 1,941)
- Gray (Population: 6,820)
- Greenbush (Population: 1,421)
- Greene (Population: 4,076)
- Greenville (Population: 1,623)
- Guilford (Population: 1,531)
