Payment channels

Pay Golden State Water Company – Claremont Customer Service Area

Use the provider’s verified online, telephone, mail, or counter instructions. Check the final confirmation screen for the amount, processing date, and any transaction fee before submitting.

Primary online route

Use the official payment portal

The direct portal is the fastest route when it is available. The provider identifies its payment gateway as MyGSWater customer account portal; one-time guest payments are available through Golden State Water’s authorized KUBRA EZ-PAY channel.. Never enter account credentials into a lookalike site reached through an unsolicited message.

Open payment portal ↗

Telephone payment

Phone IVR

1-844-706-7690, Golden State Water’s 24/7 automated payment service. Have the account number and account telephone number ready. General customer and emergency service is available at 1-800-999-4033 or local 909-394-2272, 24 hours a day, 7 days a week.

Have your account number and payment instrument ready. Follow the provider’s recorded prompts and retain the confirmation number.

Alternative channels

Mail, text, and in-person payment instructions

Pay by text

The company sends past-due and scheduled-disconnection reminders by mail, email, text, and outbound calls when current contact information is maintained in MyGSWater. No separate text-to-pay keyword, short code, or SMS payment authorization procedure is published in the reviewed 2026 materials; customers should use the authorized portal or IVR and avoid paying through an unsolicited text link.

Mail-in address

Golden State Water Company, PO Box 51133, Los Angeles, CA 90051-1133. Make checks payable to Golden State Water Company and mail several days before the due date. The company’s San Dimas corporate address, 630 E. Foothill Blvd., San Dimas, CA 91773, is not the lockbox address specified for mailed bill payments.

Counters, drop boxes, and office hours

Golden State Water does not publish a staffed Claremont cashier location on its current payment page. Cash can be paid in person at participating KUBRA EZ-PAY retail agents by using the authorized locator, choosing cash payment, generating an EZ-Payslip, and bringing the slip and cash to the selected retailer. A small KUBRA service fee applies and payments after 5:00 p.m. post the next business day. Customer-service and emergency representatives are available by phone 24/7; no separate Claremont walk-in counter hours were located.

Accepted digital instruments

What you can use online

MyGSWater provides self-service billing, payment history, paperless billing, and scheduled online payments. KUBRA EZ-PAY supports checking/electronic check, debit or credit card, and cash at participating retailers; Golden State’s tariff identifies ATM, Visa, Mastercard, Discover, or electronic check for telephone payments. Utility electronic-funds-transfer AutoPay draws the total bill from checking or savings on the due date without a utility enrollment charge. Apple Pay and Google Pay are not identified in the reviewed materials.

2026 transaction pricing

Convenience fees

Golden State Water’s CPUC Rule 9 identifies a non-refundable $1.45 convenience fee for credit/debit-card transactions up to $800, charged by the payment vendor rather than the utility; each account transaction is assessed separately. KUBRA cash payments carry a small service fee. Bank AutoPay has no utility charge, although a bank may charge its own fee and rejected payments may incur additional fees.

Fees can vary by payment type, channel, account class, and processor terms. The checkout screen is the final fee disclosure.

Payment guidance

Choose the payment channel that fits your deadline

The safest payment path is the one published by Golden State Water Company – Claremont Customer Service Area and matched to the account information on your bill. Online portals are convenient, but telephone, mail, counter, and drop-box options may follow different posting schedules and may use different fees.

For a routine payment, save the final confirmation page or IVR number and check when the transaction will post. For a same-day shut-off notice, do not assume that submitting a card payment automatically stops a field order; ask the provider what amount and confirmation are required.

Never send your account number, password, card details, or bank information to Water Ledger. Those details belong only on the provider’s verified payment channel or at an authorized counter.

Return to utility profile →Review shut-off rules →