California Water Service | Visit Stockton
California Water Service

California Water Service

1505 E. Sonora St.
Stockton, California 95205
Phone: (209) 547-7900

Mapped location of California Water Service

California Water Service

California Water Service (Cal Water) is the largest investor-owned American water utility west of the Mississippi River and the third largest publicly traded in the country. Formed in 1926, this company serves more than 482,400 customers throughout the state. This company has a commitment to delivering a reliable, high-quality water supply, providing friendly, responsive customer service, and enhancing the quality of life in the communities we serve.