Welcome to the Marin Municipal Water District. We are fortunate to be able to supply our customers with high quality water from local sources. Approximately 75 percent of our drinking water comes from rainwater captured in seven reservoirs located on 21,600 acres of protected watershed on Mt. Tamalpais and in west Marin. The rest is imported from the Russian River in Sonoma County.
What would you like to do?
For other services, call the Customer Service Department at (415) 945-1400 weekdays, 8:00 a.m. - 4:15 p.m.
Create an Online Billing Account
The Login/Register link at the top right of the page provides access to our online payment system. If you have never used the system, you must first create a username and password. To do so: 1) Click on the Login/Register link. 2) Complete the information at the bottom of the page under "New Users." 3) Click "Continue" and follow the prompts.
Using the online payment system you can:
- Pay your bill with MasterCard, Visa, American Express, Discover or a checking account
- Set up automatic payments
- Change your address/phone
- Request a high consumption inquiry
- Request ebills
- Stop service
- Review past bills
- Review payment history of payments made on the online account system