The Water District’s service area covers 27 square miles and includes the cities of Alhambra, Azusa, Monterey Park and Sierra Madre. Combined, the District serves a population of more than 200,000 people.
The San Gabriel Valley Municipal Water District has five divisions:
- Division I – northern section of Alhambra
- Division II – northern section of Monterey Park and the southern section of Alhambra
- Division III – the remainder of Monterey Park
- Division IV – Sierra Madre
- Division V – Azusa






