Where to pay your Kennewick water, sewer, and stormwater bill
The City of Kennewick accepts bill payments through three main channels: online through their official website, by mail, or in person at their office. The online portal is the fastest route — you can pay immediately without waiting for mail delivery, and you'll see confirmation right away. If you prefer mailing a check or paying in person, both options work, but they take longer to process.
Your bill shows a due date, usually 20 days from the date printed on it. Payments received after that date may trigger a late fee. The city applies online payments on the day you submit them, while mailed checks take 7 to 10 business days to clear, so plan ahead if you're paying by mail.
Key Takeaways
- Pay online at the City of Kennewick's official bill payment portal to see your payment processed the same day.
- Mail payments should be sent at least 10 days before the due date to avoid late fees, since checks take a week or more to process.
- You can pay in person at the Kennewick City Hall during business hours if you prefer to hand over payment directly.
- Late payments trigger a fee, so set a reminder for the due date shown on your bill if you're not paying immediately.
- Your bill includes charges for water, sewer, and stormwater; you pay all three together, not separately.
Paying online through the City of Kennewick website
Visit the City of Kennewick's official website and look for the utility bill payment section. You'll need your account number, which appears on the front of your bill. The online system accepts credit cards, debit cards, and bank transfers (ACH payments). Each payment method may carry a different processing fee — credit and debit cards typically cost more than ACH transfers, so check the fee before you confirm.
Once you enter your account number and payment amount, the system will show you the fee upfront. You can choose to pay it or select a different payment method. After you submit, you'll receive a confirmation number on screen and usually by email. Keep this number in case you need to reference the payment later.
Online payments are processed the same day you submit them during business hours. If you pay after hours or on a weekend, the payment enters the queue for the next business day. The city's website will show your updated account balance within one to two business days.
Mailing a check to the City of Kennewick
Write your check to "City of Kennewick" and include your account number on the memo line. This helps the city match the payment to your account quickly. Mail it to the address listed on your bill — this is usually the Kennewick Utility Billing office, but confirm the current mailing address on your statement since office locations can change.
Mail your check at least 10 business days before the due date. The postal service typically takes 3 to 5 days, and the city needs another 2 to 5 days to receive, open, and process it. If you mail it closer to the due date, your payment may arrive after the deadline and trigger a late fee, even though you mailed it on time.
Keep a copy of your check or a photo of the front and back for your records. If you need proof that you paid, you'll have it. The city's online account portal will show the payment once it's been processed, usually within a week of arrival.
Paying in person at City Hall
The City of Kennewick accepts in-person payments at their main office during regular business hours. Bring your bill or account number and a check or cash. Call ahead to confirm the current office location and hours, since these can shift. The office staff will process your payment immediately and give you a receipt.
In-person payment is useful if you're paying cash or if you want a receipt on the spot. It's also the fastest way to ensure your payment is recorded the same day. However, it requires you to travel to the office during their open hours, which may not be convenient if you work standard business hours.
Understanding late fees and what happens if you miss the due date
The City of Kennewick charges a late fee if your payment is not received by the due date shown on your bill. The fee amount varies and is listed on your bill or in the city's utility billing information. Late fees are added to your next bill, increasing what you owe.
If you miss the due date, pay as soon as you can. The city may send a notice, but continued non-payment can lead to service disconnection. Most utilities give a grace period of 10 to 15 days after the due date before they shut off service, but don't rely on this — contact the city immediately if you can't pay on time to discuss your options.
If you're struggling to pay your bill, the City of Kennewick may offer a payment plan or hardship program. Call their utility billing office to ask what options are available in your situation.
Setting up automatic payments or payment reminders
Many people set a phone reminder for a few days before the due date to avoid late fees. This works well if you pay manually each month. If you prefer not to think about it, ask the city whether they offer automatic payment enrollment — some utilities let you authorize recurring payments from your bank account each month.
Automatic payments remove the risk of forgetting, but they require you to trust that the amount is correct each month. Review your bill before the automatic payment processes to catch any errors. If the amount seems wrong, you can cancel the automatic payment, pay manually that month, and contact the city to resolve the issue.
What to do if you don't receive your bill
If your bill doesn't arrive by the expected date, contact the City of Kennewick utility billing office right away. They can tell you whether the bill was mailed and provide your current balance over the phone. You can still pay online using your account number even if you haven't received the physical bill.
If bills are consistently late or missing, ask the city to update your mailing address or switch to paperless billing if that option is available. Paperless billing sends you an email when your bill is ready, so you won't miss the due date.
Frequently Asked Questions
Can I pay my Kennewick water bill with a credit card online?
Yes, the city's online payment portal accepts credit cards, but there is a processing fee. The fee is shown before you confirm the payment. Debit cards and bank transfers (ACH) may have lower or no fees, so compare your options before paying.
What happens if I pay after the due date?
A late fee is added to your account. The amount varies and is listed on your bill. If you continue to miss payments, the city may disconnect your water service after a grace period, usually 10 to 15 days after the due date.
How long does it take for a mailed check to show up in my account?
Mailed checks typically take 7 to 10 business days to process — 3 to 5 days for mail delivery plus 2 to 5 days for the city to receive and record it. Online payments show up the same day you submit them.
Can I pay my bill over the phone?
Call the City of Kennewick utility billing office to ask whether phone payments are available. Some utilities offer this service, while others direct you to their online portal or in-person office. The phone number is usually on your bill.
What if I think my bill is wrong?
Contact the utility billing office before you pay to dispute the amount. They can review your account and explain the charges. If there is an error, they will correct it. Don't ignore a bill you think is wrong — contact the city to resolve it.