Pay your Casper city utilities bill through the city's online portal, by phone, or by mail
The City of Casper offers several ways to pay your water, sewer, and trash bills. The fastest method is the online portal at the city's website, where you can pay immediately with a bank account or debit card. You can also call the Casper Utilities Department directly, mail a check, or pay in person at City Hall.
Each method has different timing and fees. Online and phone payments typically post within one business day. Mail payments take longer — usually 7 to 10 days from when the city receives your envelope — so plan ahead if your bill is due soon. There is no fee for online or mail payments, but the city may charge a small fee for phone payments depending on the payment processor.
Key Takeaways
- The City of Casper's online bill pay portal is the fastest way to pay and posts within one business day with no fee.
- Mail payments take 7 to 10 days to reach the city, so send them at least two weeks before your due date to avoid late fees.
- You can call the Casper Utilities Department to pay by phone, though a processing fee may apply depending on the payment method.
- In-person payments at City Hall are accepted during business hours and post the same day.
- Your account number appears on your bill and is required for all payment methods.
Setting up online bill pay through the city portal
The City of Casper's website has a dedicated bill pay section where you can create an account and pay your utilities online. Go to the city's official website, find the Utilities Department or Bill Pay link, and select the option to pay online. You will need your account number, which is printed on your bill, and a valid email address.
Once you create your account, you can log in anytime to view your balance, see payment history, and make a one-time payment or set up automatic recurring payments. Automatic payments deduct from your bank account on a date you choose each month, which removes the risk of forgetting a due date. You can change or cancel automatic payments at any time through your account.
Online payments are processed immediately when you submit them, though they may take up to one business day to post to your account. The city does not charge a fee for online payments made through their portal.
Paying by phone with the Casper Utilities Department
You can call the Casper Utilities Department directly to pay your bill over the phone. Have your account number and a debit card or bank account information ready. The department's phone number and hours are listed on your bill and on the city's website.
Phone payments are processed immediately, but a fee may be charged by the payment processor — this fee varies depending on the method you use. Ask the representative what the fee will be before you confirm the payment. Phone payments post within one business day, similar to online payments.
Mailing a check or money order to the city
If you prefer to pay by mail, write a check or money order and include your account number on the payment. The mailing address for bill payments is listed on your bill and on the city's website — do not send payments to City Hall's main address unless the bill specifically directs you there.
Mail payments take 7 to 10 days from the date the city receives your envelope, so send your payment at least two weeks before the due date to avoid a late fee. The city does not charge a fee for mail payments. If you are paying an overdue balance, mail is the slowest option and may result in additional late charges while your payment is in transit.
Paying in person at City Hall
You can walk into City Hall during business hours and pay your bill at the Utilities Department counter. Bring your account number and a check, money order, or debit card. In-person payments post the same day, making this a good option if your bill is due very soon and you do not have online access.
City Hall's address, hours, and which counter handles utility payments are available on the city's website. Call ahead if you are unsure which department to visit or if you have questions about what payment methods they accept in person.
Understanding your bill due date and late fees
Your bill shows a specific due date, usually 15 to 20 days after the bill is mailed. If payment is not received by that date, the city charges a late fee. The amount of the late fee is listed on your bill or in the city's utility billing rules, which you can find on the city's website.
If you pay online or in person, your payment posts immediately and counts as on-time if submitted before midnight on the due date. If you mail a check, the city counts the payment as on-time based on the date it is received at City Hall, not the date you mailed it. This is why mailing early is important — a check postmarked on time but received after the due date will still incur a late fee.
What to do if you cannot pay your full bill
If you are having trouble paying your water or sewer bill, contact the Casper Utilities Department before your due date. The city may offer a payment plan that lets you spread the balance over several months instead of paying it all at once. Payment plans typically require a small down payment and regular monthly installments.
The city may also have information about utility assistance programs for low-income households. These programs are sometimes run by the city itself or by local nonprofits. Call the Utilities Department and ask whether assistance is available — they can direct you to the right program or organization.
Frequently Asked Questions
What is my account number and where do I find it?
Your account number is a unique identifier for your property and appears at the top of your bill, usually near your name and address. You need this number to pay online, by phone, or by mail. If you cannot find it on your bill, call the Casper Utilities Department and provide your address — they will give you the number.
Can I set up automatic payments so I do not have to pay every month?
Yes. Once you create an account in the city's online portal, you can set up automatic recurring payments that deduct from your bank account on the same date each month. You can change the amount or cancel automatic payments anytime through your account without penalty.
How long does it take for a mailed check to post?
Mail payments typically take 7 to 10 days from the date the city receives your envelope. To be safe, mail your payment at least two weeks before the due date. If your bill is due soon, use online, phone, or in-person payment instead to avoid late fees.
Is there a fee to pay online through the city's portal?
No. The City of Casper does not charge a fee for online payments made through their official bill pay portal. Phone payments may have a small fee depending on the processor, but mail and in-person payments are also free.
What happens if I miss my due date?
A late fee is added to your balance. The amount varies and is shown on your bill or in the city's utility rules. If you continue to miss payments, the city may shut off your water service. Contact the Utilities Department immediately if you fall behind — they may offer a payment plan or direct you to assistance programs.