Three electric companies distribute electrical power to Galveston County. These three companies and their service areas are:
- Texas/New Mexico Power
- Friendswood
- League City
- Dickinson
- La Marque
- Texas City
- Hitchcock
- CenterPoint Energy
- Clear Lake Shores
- Dickinson
- Friendswood
- Hitchcock
- Kemah
- La Marque
- League City
- Santa Fe
- Texas City
- Entergy
- Bolivar Peninsula
