Where to pay your Longmont water, electric, and gas bill

The City of Longmont operates its own water, electric, and gas utilities. You can pay your bill online through the city's website, by phone, by mail, or in person at their office. The online portal is the fastest route — you can set up a one-time payment or recurring automatic payments without waiting for business hours.

To pay online, go to the City of Longmont's utility billing website and log into your account. If you do not have an online account yet, you will need to create one using your account number (found on your bill) and service address. Once logged in, you can view your current balance, payment history, and usage details.

If you prefer not to pay online, you can call the Longmont Utilities Customer Service line during business hours, mail a check to the address printed on your bill, or pay in person at City Hall. Each method takes different amounts of time, so choose based on when you need the payment processed.

Key Takeaways

  • The City of Longmont's online payment portal lets you pay immediately without calling or mailing a check, and you can set up automatic payments for future bills.
  • Your account number appears on your bill and is required to create an online account or pay by phone.
  • Mailed payments should be sent to the address on your bill and typically take 5 to 7 business days to post to your account.
  • In-person payments at City Hall are processed the same day, but the office has set hours and may have a wait during peak times.

Setting up an online account and making your first payment

Visit the City of Longmont's utility billing portal and select the option to create a new account. You will need your account number (a 7 or 8-digit number on your bill), your service address, and your zip code. The system will ask you to create a username and password.

Once your account is created, log in and navigate to the payment section. You can choose to pay the full balance, a partial amount, or set up a recurring monthly payment. The system accepts credit cards, debit cards, and bank transfers. Be aware that credit and debit card payments may include a processing fee — the exact amount appears before you confirm the transaction.

Bank transfers (ACH payments) typically do not charge a fee and take one to two business days to process. If you want your payment to arrive by a specific date, choose the method and timing accordingly.

Automatic payments and budget billing options

The City of Longmont offers automatic payment setup through the online portal. You can authorize the city to withdraw a fixed amount from your bank account on a date you choose each month. This prevents late payments and removes the need to log in each billing cycle.

The city also offers budget billing, which spreads your annual utility costs evenly across 12 months. This smooths out seasonal spikes — your summer electric bill or winter heating costs do not create a sudden jump. To enroll, contact Longmont Utilities Customer Service or request it through your online account.

Budget billing is recalculated annually based on your actual usage from the previous year. If your usage changes significantly (for example, you add a new appliance or move to a smaller home), you can request a recalculation mid-year.

Mailing a check or paying in person

If you mail a payment, write your account number on the check and send it to the address printed on your bill. The Longmont Utilities office is located at City Hall, 350 E. Fourth Avenue, Longmont, CO 80501. Mail payments typically take 5 to 7 business days to reach the office and post to your account, so mail early if your due date is approaching.

In-person payments can be made at City Hall during business hours. The office accepts cash, checks, and card payments. Payments made in person are posted to your account the same day. Call ahead to confirm current hours, as they may change seasonally or for city holidays.

Do not mail cash. If you must pay in person with cash, go directly to City Hall rather than mailing it.

Understanding your bill and due dates

Your Longmont utility bill shows your water, electric, and gas usage and charges separately. The bill lists the due date near the top or bottom — this is the date by which payment must be received to avoid a late fee. Late fees are typically a percentage of the unpaid balance and accrue monthly.

Bills are usually mailed around the same day each month, and the due date is typically 20 to 25 days after the bill date. If you have automatic payments set up, the payment will be withdrawn on the date you selected, regardless of when the bill arrives.

Your bill also shows your current meter reading and your usage compared to the same month last year. This information helps you spot unusual spikes that might indicate a leak or a change in your habits.

What to do if you cannot pay on time

If you know you will miss the due date, contact Longmont Utilities Customer Service as soon as possible. The city may be able to arrange a payment plan or extension depending on your situation. Calling before the due date is much easier than dealing with late fees and potential service disconnection afterward.

The City of Longmont has programs for customers with low incomes who struggle to pay utility bills. Contact the city directly to ask about these programs and what information you will need to provide.

If your service is disconnected for non-payment, you will need to pay the full past-due balance plus a reconnection fee to restore service. Reconnection typically takes one to two business days after payment is received.

Frequently Asked Questions

Is there a fee to pay online with a credit card?

Yes. Credit card payments through the City of Longmont's portal include a processing fee, usually 2 to 3 percent of the payment amount. The exact fee is shown before you confirm the transaction. Bank transfers (ACH) do not charge a fee and take one to two business days.

Can I change my due date?

The due date is set by the city's billing cycle and cannot be changed. However, if you set up automatic payments, you can choose the date the payment is withdrawn from your account, which gives you flexibility in managing your cash flow.

What happens if I overpay my bill?

If you pay more than you owe, the extra amount becomes a credit on your account and is applied to your next bill. You can also request a refund by contacting Longmont Utilities Customer Service.

How do I know if my payment was received?

Log into your online account to check your payment history and current balance. Online and in-person payments post immediately. Mailed checks take 5 to 7 business days. If you paid by phone, ask for a confirmation number when you make the payment.

Can I pay someone else's Longmont utility bill?

Yes, you can pay another person's bill if you have their account number. You can do this online, by phone, or by mail. The payment will be applied to their account regardless of whose name appears on the check or payment method.