How do I start water service?

Customers must complete and sign a City of Sonoma Water Application. This form may be obtained at City Hall, No. 1 The Plaza, Sonoma, CA 95476, by calling (707) 933-2244 or emailing the Finance Department at The completed form may be returned by mail, in person or via email.

New residential service customers (includes renters, agents, & lessees) are required to make a $150 deposit along with the application. The deposit may be refunded in two years (with good payment history). New service can normally be initiated within 24 hours of receipt of signed application and deposit. The City accepts cash, check, debit card and credit card (MasterCard, Visa, American Express and Discover) payments.

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