Billing & Payment Info

How to Pay Your Bill

We offer several convenient ways to pay your bill. Pay online, by mail, by phone or in person. You can even set it up to be paid automatically each month! Choose the one that works best for you.

Pay Online

Visit amwater.com/billpay.  Be sure to have your 16-digit account number handy. Note: Our payment partner, Paymentus, charges $1.95 per transaction for e-check, credit card and debit card payments.  Want to avoid the transaction fee? There is no charge to pay by e-check through  My Account. Not registered? Visit amwater.com/myaccount.

Automatic Payment

Save time and money and sign up for Auto Pay. Your bill will be paid on time, every time, directly from your checking or savings account on the date it is due. No stamps are required. You’ll still receive a copy of your bill before the due date, so you will have time to ask any questions before payment. Best of all, it’s totally free! To enroll in the program, log on to My Account or contact our customer service center.


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Pay by Mail

Use the envelope provided with your bill, and send your payment along with the payment stub. No cash, staples or paper clips please. Mail to: California American Water, P.O. Box 7150, Pasadena, CA 91109-7150

Pay by Phone

If you do not have questions about your bill, you can pay by phone using your Visa or MasterCard by calling 1.855.748.6066. Be sure to have your account number handy.
Please note that our payment vendor, Paymentus, charges $1.95 per transaction.

Want to avoid the transaction fee? There is no charge to pay by e-check through My Account. Not registered? Visit amwater.com/myaccount.

Pay In Person at Local Payment Location

California American Water has agreements with several authorized payment locations across the state. Please note that this list changes periodically. Customers are encouraged to call the location first, to ensure they still accept payments for California American Water. Please note these locations DO NOT accept payments by mail. Find a payment location:

Pay Through a Third Party

If someone handles paying your bills, such as a relative, trustee or social service organization, we can send a copy of your bill, as well as a reminder, past-due and shut-off notices, to that third party. To add a third-party, visit My Account or contact our customer service center at 888.237.1333, Monday through Friday, 7 a.m. to 7 p.m.