24 Retail Member Agencies Serve the Region

The San Diego County Water Authority provides a safe and reliable supply of water to its member agencies serving 3.3 million people and a $253 billion regional economy.  When formed on June 9, 1944, the Water Authority served nine agencies. Today, 24 member agencies deliver water across the metropolitan San Diego region.

The Water Authority’s member agencies include:

  • 6 cities
  • 5 water districts
  • 3 irrigation districts
  • 8 municipal water districts
  • 1 public utility district
  • 1 federal agency (military base)

Member agencies are represented on a 36-member Water Authority Board of Directors. A member of the San Diego County Board of Supervisors also serves as a non-voting representative to the Water Authority Board.

Member Agency Map

Click on the map for contact information. To learn which agency serves a specific address, go to Find My Water District.

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Camp Pendleton Marine Corps Base

Division: Water Resources, AC/S Facilities

Address: Marine Base Camp Pendleton, CA 92055

Phone: (760) 725-1061

Website: www.pendleton.marines.mil

Carlsbad Municipal Water District

Address: 5950 El Camino Real Carlsbad, CA 92008

Phone: (760) 438-2722

Website: www.carlsbadca.gov/water

Del Mar, City of

Address: 1050 Camino Del Mar Del Mar, CA 92014

Phone: (858) 755-9313

Website: www.delmar.ca.us

Escondido, City of

Division: Utilities Division

Address: 201 N. Broadway Escondido, CA 92025

Phone: (760) 839-4880

Website: https://www.escondido.org/utilities.aspx

Fallbrook Public Utility District

Address: 990 East Mission Rd Fallbrook, CA 92028

Phone: (760) 728-1125

Website: www.fpud.com

Helix Water District

Address: 7811 University Avenue La Mesa, CA 91941

Phone: (619) 466-0585

Website: www.hwd.com

Lakeside Water District

Address: 10375 Vine Street Lakeside, CA 92040

Phone: (619) 443-3805

Website: www.lakesidewater.org

National City

Division: (Member of Sweetwater Authority)

Phone: (619) 420-1413

Website: www.sweetwater.org

Olivenhain Municipal Water District

Address: 1966 Olivenhain Road Encinitas, CA 92024

Phone: (760) 753-6466

Website: www.olivenhain.com

Padre Dam Municipal Water District

Address: P.O. Box 719003 Santee, CA 92072

Phone: (619) 448-3111

Website: www.padredam.org

Poway, City of

Division: Public Services Department

Address: P.O. Box 789 Poway CA 92074-0789

Phone: (858) 748-6600

Website: www.ci.poway.ca.us/Index.aspx?page=326

Rainbow Municipal Water District

Address: 3707 Old Highway 395 Fallbrook, CA 92028-2500

Phone: (760) 728-1178

Website: www.rainbowmwd.com

Ramona Municipal Water District

Address: 105 Earlham Street Ramona, CA 92065

Phone: (760) 789-1330

Website: www.rmwd.org

Rincon del Diablo Municipal Water District

Address: 1920 N. Iris Lane Escondido, CA 92027

Phone: (760) 745-5522

Website: www.rinconwater.org

San Diego, City of

Division: Water Department

Address: 600 B Street, Suite 1100 San Diego, CA 92101

Phone: (619) 515-3500

Website: www.sandiego.gov/water/

San Dieguito Water District

Address: 160 Calle Magdalena Encinitas, CA 92024

Phone: (760) 633-2650

Website: www.sdwd.org

Santa Fe Irrigation District

Address: P.O. Box 409 Rancho Santa Fe, CA 92067

Phone: (858) 756-2424

Website: www.sfidwater.org

South Bay Irrigation District

Division: (Member of Sweetwater Authority)

Phone: (619) 420-1413

Website: www.sweetwater.org

Vallecitos Water District

Address: 201 Vallecitos de Oro San Marcos, CA 92069

Phone: (760) 744-0460

Website: www.vwd.org

Valley Center Municipal Water District

Address: P.O. Box 67 Valley Center, CA 92082

Phone: (760) 749-1600

Website: www.vcmwd.org

Vista Irrigation District

Address: 1391 Engineer St. Vista, CA 92081

Phone: (760) 597-3100

Website: www.vid-h2o.org

Yuima Municipal Water District

Address: P.O. Box 177 Pauma Valley, CA 92061

Phone: (760) 742-3704

Website: www.yuimamwd.com