Living in the southwest suburbs of Seattle? Then you likely receive sewer services from the Southwest Suburban Sewer District (SWSSD). Paying your sewer bill on time each month is important to avoid any service disruptions. In this comprehensive guide, we’ll provide tips and instructions for the easiest ways to pay your SWSSD bill online or through other convenient payment options.
Overview of SWSSD and Your Sewer Bill
The Southwest Suburban Sewer District serves over 210000 customers across 10 cities including Burien Des Moines, Normandy Park, SeaTac, and more. SWSSD maintains over 800 miles of sewer pipes and manages six regional wastewater treatment plants.
As a SWSSD customer, you are billed bi-monthly for sewer service charges based on your water consumption. Bills are typically sent in the middle of February, April, June, August, October, and December. Payment is due by the 25th of the following month. So for a June bill, payment would be due by July 25th.
In addition to usage charges, your SWSSD bill may also include:
- Base service charge
- Surface water management fee
- Utility tax
- Late payment penalties if bill is paid after the due date
Failing to pay your bill on time could result in penalties, collection notices, and even service shut offs down the line, so paying on time is essential.
Why Pay Your SWSSD Bill Online
Paying your SWSSD sewer bill online is the quickest and most convenient way to pay each month. Here are some key benefits of paying online:
- Avoid late fees by paying by the due date
- Setup automatic payments to have your bill paid on time each period
- Access billing history and account details in one place
- Make a payment anytime from your computer or mobile device
- Save time by not having to mail in payments or visit the office
SWSSD offers a few different options for paying your sewer bill online fast and easy.
Paying Your SWSSD Bill Through the Online Portal
The easiest way to pay your SWSSD bill online is through their online bill pay portal. Here’s how to use the online system:
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Visit SWSSD’s online bill pay website and select “Pay Bill”.
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If it’s your first time, select “First Time Users Sign Up Here” to create an account. Provide your SWSSD account number, name, email, and create a password.
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To make a payment once you’re logged in, select “Pay Bill” and enter your payment details including card number or bank account information.
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Payments made through the online portal are typically processed within 1-2 business days.
You can also setup automatic payments through the portal so your bill gets paid on its own each period. The online system accepts Visa, Mastercard, Discover, American Express, and e-checks.
Paying Your SWSSD Bill Through doxo
Another option is to pay through the doxo online bill pay service. doxo is a secure platform that lets you organize and pay bills for thousands of providers in one place.
To pay your SWSSD bill through doxo:
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Create a free doxo account and add your SWSSD account.
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Select the option to pay your SWSSD sewer bill.
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Enter your credit card, debit card, or bank account information to make a secure payment.
doxo will store your SWSSD account details for easy one-click payments each month. You’ll also receive bill reminders and access your payment history.
Paying by Phone
If you prefer to pay your SWSSD bill over the phone, call 206-244-9575 and select option 1. You can check your account balance and make a payment using your credit card or e-check.
SWSSD’s automated phone payment system is available 24/7 so you can pay your bill on your schedule. Just have your account number and payment details handy when you call.
Paying by Mail
Sending a physical check or money order is still an option for paying your SWSSD sewer bill. Detach the payment stub from your bill and mail it along with your check to:
Southwest Suburban Sewer District
17840 Des Moines Memorial Drive S
Burien, WA 98148
To avoid late fees, be sure to mail your payment several days before the due date listed on your bill.
Avoid Penalties by Paying Early
To prevent late fees and other penalties, be sure to pay your SWSSD sewer bill early, either online, by phone, or by mail. Mark your calendar with each bill due date so it doesn’t slip your mind. Setting up automatic payments is an easy way to have your bill paid on time without the hassle.
Paying your SWSSD bill through the convenient online portal or doxo service allows you to skip the stamps and paperwork. Go online or use your mobile device to pay your bill from anywhere in just minutes. It’s the fastest, easiest way for SWSSD customers to pay on time, every time.

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How do I pay my Southwest Suburban Sewer District Bill?
Checks can be mailed to the District Office at any time. Bills are sent out bimonthly, along with a return envelope. For your convenience, Southwest Suburban Sewer District offers many ways to pay your bill. Find out how to pay online, forego paper checks, set up automatic payments, pay in person, or call and pay.
What is southwest suburban Sewer District?
The Southwest Suburban Sewer District (the District) was created in 1945 to run and take care of the sewer systems that the Federal Government built during World War II. When it was created, the District was made up of a 900-acre service area around the White Center neighborhood.
How do I bid on WSSC water solicitations?
To bid on WSSC Water solicitations, prospective vendors must enroll in our Supplier Portal System. This overview guides you through the process. WSSC Water is looking for ways to make money that aren’t tied to the money we get from our ratepayers.
What is the Seattle Sewer District?
The District covers about 10 square miles and serves parts of the cities of Seattle, Des Moines, Bend, and Seatac, as well as the city of Burien. It also serves the Valley View Sewer District. Stay Connected! Subscribe to Notify Me to receive updates and information about community news and happenings.
What is the White Center Sewer District?
When it was created, the District was made up of a 900-acre service area around the White Center neighborhood. The District covers an area of about 10 square miles and serves parts of the cities of Seattle, Des Moines, Seatac, and Burien, as well as the Valley View Sewer District.