Marin Water Online Payment, Paymentus Quick Pay, Autopay, Phone, Mail and Corte Madera Office Guide
Use this guide to pay your Marin Water bill online, make a quick one-time payment, register for the new online billing portal, set up automatic bill payment, use digital wallets, pay by phone, mail a check, visit the Corte Madera office and get password reset or billing support.
🔒 Official Marin Water Payment Resources
Pay by phone: 866-332-2444. Paymentus after-hours support: 800-420-1663. Office: 220 Nellen Ave., Corte Madera, CA 94925.
Marin Water Bill Payment Basics for Homeowners, Tenants and Businesses
Marin Water customers can pay online through the official Account Info/Bill Pay page, use the new Paymentus billing portal, make a quick one-time payment, register for online account access, set up automatic bill payment, pay by phone, mail a check or pay in person at the Corte Madera office.
The most important rule is simple: start from the official Marin Water website before entering account, card, bank or digital wallet details. This protects you from lookalike bill-pay pages and keeps you closer to the correct current instructions.
The new billing portal is useful for customers who want faster account access. First-time users can register using the six-digit customer number from the upper right corner of the Marin Water bill. If you do not want to register, the quick one-time payment option may be enough.
| Need | Official Marin Water Option | What To Know |
|---|---|---|
| Pay online | Account Info/Bill Pay page | Start from Marin Water before entering payment details. |
| Quick one-time payment | New online billing portal | Useful when you do not want to create a full account. |
| Register account | Six-digit customer number | Find it in the upper right corner of your bill. |
| Pay by phone | 866-332-2444 | Use this when you prefer payment by phone or the website is not convenient. |
| Billing help | 415-945-1400 | Best for account, posting, address, service and billing questions. |
How to Pay Marin Water Bill Online Through the Official Paymentus Portal
The safest online route is to start from Marin Water’s official Account Info/Bill Pay page. From there, use the Pay Your Bill Online or new online billing portal link shown by Marin Water.
1
Open the official Marin Water bill pay pageStart from marinwater.org
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Go to the official Marin Water Account Info/Bill Pay page first. This is the cleanest way to reach the current secure online billing portal and avoid outdated third-party payment pages.
2
Choose online bill pay or the new billing portalPaymentus handles the newer payment experience
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Marin Water’s new bill pay system supports automatic bill payment, one-time online payment, digital wallets, phone payment, mail payment and in-person payment. Use the official links shown on Marin Water’s page.
3
Log in, register or use quick one-time paymentUse your bill details exactly
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If you already have portal access, log in. If this is your first time, register with the six-digit customer number from the upper right corner of your Marin Water bill. If you only want to pay once, use quick one-time payment where available.
4
Select your payment method carefullyBank, card and digital wallet options may show in portal
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The new system lists online payment and digital wallet options such as Venmo, Apple Pay, Google Pay and PayPal. Always review what the portal shows on the payment screen before submitting.
5
Save confirmation after paymentImportant if due date is close
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Save the confirmation number, payment date, amount and payment method. If the payment does not appear or your account is close to late status, call Marin Water Customer Service with the confirmation details.
Marin Water Automatic Bill Payment, Quick Pay and Digital Wallet Options
Marin Water’s new billing system supports automatic bill payment and one-time online payment. It also lists digital wallet options, which can be useful when you want a faster checkout experience.
Automatic bill payment
Good for customers who want fewer missed due dates and a predictable payment routine.
Quick one-time payment
Good when you need to pay once without setting up a full online profile.
Digital wallets
Good if the portal offers Apple Pay, Google Pay, Venmo or PayPal at checkout.
1
Decide whether you need one-time pay or autopayBoth have different uses
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Use quick pay when you only need to submit a bill now. Use automatic bill payment if you want future bills paid without repeating the same payment steps every billing cycle.
2
Register with the correct customer numberFind it on the upper right of the bill
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For first-time portal registration, use the six-digit customer number exactly as printed on your Marin Water bill. Wrong account details can stop registration or attach payment to the wrong record.
3
Add or confirm the payment methodCard, bank or wallet options depend on portal screen
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Review the payment method, billing name, service address and amount before turning on autopay. If you use a card, remember to update the portal when the card expires.
4
Still review every billAutopay does not replace usage review
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Automatic payment helps prevent missed due dates, but it does not prevent high bills caused by irrigation, leaks, seasonal water use, meter changes or billing adjustments. Review each new bill before payment drafts.
How to Pay Marin Water Bill by Phone and Get Paymentus Support
Phone payment is useful when the online portal is not convenient, you are away from a computer, or you want to pay without logging in. Marin Water lists a dedicated pay-by-phone number and separate after-hours Paymentus support.
Pay by phone
Call 866-332-2444 to use Marin Water’s listed pay-by-phone option.
Paymentus help
Call 800-420-1663 for after-hours bill pay support from Paymentus.
Billing questions
Call 415-945-1400 for Marin Water customer service and account questions.
1
Call the official pay-by-phone numberUse the number listed by Marin Water
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Call Marin Water’s pay-by-phone number and follow the automated prompts. Keep your latest bill ready before calling.
2
Enter your account details carefullyUse the bill, not memory
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You may need your customer number, service address, ZIP code, balance or other account details. Enter the information exactly as shown on your Marin Water bill.
3
Save the confirmation numberNeeded if payment does not show
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Write down or screenshot the confirmation number, payment date and amount. If there is a posting problem, call customer service with these details.
4
Use Paymentus after-hours support when neededPortal/payment support after normal hours
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If the problem is related to the payment portal or after-hours bill pay support, Marin Water lists Paymentus support at 800-420-1663.
Marin Water Mail Payment, Corte Madera Office and Public Counter Details
Marin Water customers can also mail payments or visit the Corte Madera office. These options are helpful for check payments, account questions, address updates, discount program help and customers who prefer direct support.
Mail payment
Send check payments to Marin Water, P.O. Box 994, Corte Madera, CA 94976.
In-person office
Visit 220 Nellen Ave., Corte Madera, CA 94925 during public counter hours.
Counter hours
Public counter hours are Monday through Thursday, 8 a.m. to 4:30 p.m., closed Friday.
1
Mail check payment earlyDo not use mail for last-minute payment
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Write your customer number or account details clearly and include the bill stub if available. Mail is slower, so send payment well before the due date.
2
Visit the Corte Madera office if you need counter helpGood for account and billing questions
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Use the Marin Water office when you need direct customer service, address update help, password reset guidance, discount program assistance or billing support.
3
Check counter hours before goingClosed Friday
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Marin Water lists public counter hours as Monday through Thursday, 8 a.m. to 4:30 p.m., and closed Friday. Holidays may also affect hours.
Real Marin Water Bill Tips That Save Time, Login Trouble and Payment Confusion
These practical checks help Marin Water customers avoid wrong portals, failed password attempts, late payments, duplicate accounts and confusion after the new billing portal change.
Start from MarinWater.org
Always open the official Account Info/Bill Pay page first instead of clicking random bill-pay search results.
Keep the six-digit number ready
First-time registration needs the six-digit customer number from the upper right corner of your bill.
Use quick pay for simple one-time payment
If you do not want to manage an online account, quick one-time payment may be faster.
Do not create duplicate accounts
If your old login fails, use the official password reset assistance form before creating another profile.
Pay early if using mail
Mail payment can take time. Use phone or online payment when your due date is near.
Review usage even with autopay
Automatic payment helps with due dates, but high water use, irrigation or leaks can still increase your bill.
Marin Water Customer Service Phone, Paymentus Support, Mailing Address, Office and Map
Use Marin Water Customer Service for billing, account, address, payment posting, password reset, discount program and customer support questions. Use Paymentus support for after-hours bill pay support related to the payment system.
| Resource | Use It For | Official Detail |
|---|---|---|
| Customer Service | Billing questions, account help, payment posting, customer support | 415-945-1400 |
| Pay by Phone | Phone bill payment | 866-332-2444 |
| Paymentus Support | After-hours bill pay support | 800-420-1663 |
| Online Payment / Billing Page | Official online bill pay, portal, payment options | Open Account Info/Bill Pay |
| New Bill Pay System | Quick pay, registration, automatic bill payment, digital wallets | Open New Bill Pay System |
| Password Reset Help | Old login, portal access and reset assistance | Request Password Reset Assistance |
| Mail Payment | Mail check payment | Marin Water P.O. Box 994 Corte Madera, CA 94976 |
| Office / Public Counter | In-person help and customer service support | 220 Nellen Ave. Corte Madera, CA 94925 M–Th, 8 a.m.–4:30 p.m.; closed Friday |
Marin Water Customer Service Office
220 Nellen Ave., Corte Madera, CA 94925. Public counter hours are listed as Monday through Thursday, 8 a.m. to 4:30 p.m., and closed Friday.
Marin Water Bill Pay, Paymentus Portal, Quick Pay, Phone Payment and Password Reset FAQs
These answers cover common Marin Water payment questions before paying online, registering for the new portal, using quick pay, calling the phone payment line, mailing a check or asking for password help.
QWhere do I pay my Marin Water bill online?▾
Use the official Marin Water Account Info/Bill Pay page and choose the Pay Your Bill Online or new online billing portal option shown there.
QCan I pay Marin Water without creating an online account?▾
Yes. Marin Water says customers can make quick one-time payments without setting up an online account.
QWhat is the Marin Water pay-by-phone number?▾
Marin Water lists 866-332-2444 as the pay-by-phone number.
QWhat is the Marin Water customer service phone number?▾
Marin Water Customer Service can be reached at 415-945-1400 for billing and account support.
QWhat number do I call for Paymentus after-hours bill pay support?▾
Marin Water lists 800-420-1663 for after-hours bill pay support from Paymentus.
QWhere do I mail Marin Water bill payment?▾
Mail payment to Marin Water, P.O. Box 994, Corte Madera, CA 94976. Include your bill stub or customer number so the payment can be applied correctly.
QCan I pay Marin Water bill in person?▾
Yes. Visit Marin Water at 220 Nellen Ave., Corte Madera, CA 94925 during public counter hours.
QWhat are Marin Water public counter hours?▾
Marin Water lists public counter hours as Monday through Thursday, 8 a.m. to 4:30 p.m., and closed Friday.
QHow do I register for Marin Water online bill pay?▾
First-time users can register using the six-digit customer number found in the upper right corner of the Marin Water bill.
QIs WaterBillsPay.org the official Marin Water website?▾
No. WaterBillsPay.org is an independent informational guide. Use official Marin Water resources for final payment, account, service and billing decisions.