Water Providers in San Bernardino County
- Adelanto Water
- Apple Valley Ranchos Water
- Big Bear Lake Water - Big Bear System
- City Of Chino Hills Water
- City Of Chino Water
- City Of Hesperia Water
- City Of Redlands Water
- City Of Upland Water
- Colton Water Department
- Crestline Village Water District - Division 10
- CSD Big Bear - BBCCSD
- CVWD (Cucamonga Valley Water District)
- East Valley Water District
- Golden State Water - Apple Valley South
- Golden State Water - Barstow
- Hi-Desert Water District
- Joshua Basin Water District
- Loma Linda Water
- Mojave Water Agency
- Monte Vista Water District
- Needles Utilities
- Ontario Municipal Utilities
- PPHSD Water
- Rialto Water
- Riverside Highland Water Company
- San Bernardino County Special Districts - Service Area 70 J
- San Bernardino Municipal Water Department (SBMWD)
- San Bernardino Water - Glen Helen Regional Park
- San Gabriel Valley Water Company - Fontana
- Twentynine Palms Water District
- Victorville Water District
- Western Heights Water
- West Valley Water District
- WFA (Water Facilities Authority)
- Yucaipa Valley Water District
Water Providers by City
- Adelanto
- Apple Valley
- Barstow
- Big Bear City
- Big Bear Lake
- Chino
- Chino Hills
- Colton
- Crestline
- Fontana
- Grand Terrace
- Hesperia
- Highland
- Joshua Tree
- Loma Linda
- Montclair
- Needles
- Ontario
- Phelan
- Rancho Cucamonga
- Redlands
- Rialto
- San Bernardino
- Twentynine Palms
- Upland
- Victorville
- Yucaipa
- Yucca Valley
