City of Longmont Utilities provides essential electric, water, sewer, solid waste, and storm drainage services to residents and businesses throughout Longmont, Colorado. Bills are issued monthly with a clear due date printed on each statement to help avoid late fees or service interruptions. Managing your Longmont utilities bill is straightforward with secure digital tools and traditional options that keep your service active.
- For the most current billing and payment details, visit the official Utility Bill page at https://longmontcolorado.gov/utilities-and-public-works/utility-bill/.
- Customers can also make secure one-time or recurring payments directly through the official online portal at https://myutilityaccount.longmontcolorado.gov/.
Guest Pay / One-Time Payment Option
City of Longmont Utilities offers a convenient one-time payment (guest pay) option through its official utility payment portal—no full account registration required. This feature is ideal for occasional users or those who prefer to pay manually without saving information for future use.
To complete a guest/one-time payment:
- Visit the portal at https://myutilityaccount.longmontcolorado.gov/.
- Choose the one-time payment option (Payments system) at https://ipn.paymentus.com/rotp/clmt
- Enter your utility account number (found on your bill) and payment details using a credit or debit card (MasterCard, Visa, Discover, or American Express).
- Review the amount and submit for immediate confirmation.
Payments are processed securely and typically post the same or next business day. No convenience fees apply for official portal transactions. You will receive an on-screen receipt.
Online Account Management Portal
Create a free online account at https://myutilityaccount.longmontcolorado.gov/ for full 24/7 access. Once registered (using your utility account number), you can view current and past bills, track usage history, enroll in paperless billing, and manage your Longmont utilities account from any device. The portal supports both one-time payments and recurring options.
Automatic Recurring Payments (AutoPay)
Enroll in free AutoPay through your online account to have payments automatically withdrawn from your checking or savings account (EFT) or charged to your credit/debit card on the due date each month. After logging in, go to the Bills and Payments tab to set up recurring payments. This eliminates missed payments and requires no additional fees. You can modify or cancel AutoPay anytime through the portal or by calling customer service.
Pay by Phone
Pay your bill by credit or debit card over the phone with a customer service representative by calling (303) 651-8664 during business hours (Monday–Friday, 8:00 AM–5:00 PM). Have your utility account number ready. This option is available for one-time payments and provides immediate assistance with billing questions.
Mail Payments
Mail your payment stub with a check or money order (payable to City of Longmont) to: City of Longmont 350 Kimbark Street Longmont, CO 80501
Use the pre-addressed envelope included with your bill when available. Include your full utility account number on the check. Do not send cash. Allow 5–7 business days for mail delivery and processing. This option is completely fee-free.
In-Person and Drop Box Payments
Visit the Civic Center in person at: 350 Kimbark Street Longmont, CO 80501
Payments are accepted at the Utility Billing counter during business hours (Monday–Friday, 8:00 AM–5:00 PM). For after-hours convenience, use the secure drop box located on the west side of Kimbark Street across from the Civic Center. The drop box accepts checks or money orders only (no cash) and processes deposits the next business day.
Direct Bank Payment Option
You may also arrange direct payments from your checking account through your personal bank’s online bill pay service. Contact your bank for instructions on setting up City of Longmont Utilities as a payee using the mailing address above. This method is fee-free when processed through your bank.
Contact Customer Service
Reach City of Longmont Utility Billing customer service at (303) 651-8664 (Monday–Friday, 8:00 AM–5:00 PM) for billing inquiries, payment arrangements, service starts/stops, or assistance with the online portal. The office is located at the Civic Center, 350 Kimbark Street, Longmont, CO 80501. Note that updates made through the online portal for billing address or phone number do not automatically update the main Utility Billing System—contact the office directly for those changes.
Important Note on Broadband: NextLight broadband service (provided by Longmont Power & Communications) is billed separately. Pay those bills at https://mybroadbandaccount.com/LPCNextLight/ or call (303) 774-4494.
Frequently Asked Questions
Can I pay my Longmont utilities bill online without creating a full account? Yes. The official portal at https://myutilityaccount.longmontcolorado.gov/ offers a one-time/guest pay option using only your utility account number—no registration required for single payments.
What payment methods does Longmont Utilities accept? The portal and phone accept credit/debit cards (MasterCard, Visa, Discover, American Express). Mail and drop box accept checks or money orders. Direct bank payments are also available through your bank.
Are there convenience fees for Longmont utilities online or phone payments? No convenience fees apply when using the official portal, AutoPay, phone, mail, drop box, or in-person options.
Where do I mail my Longmont utilities payment? City of Longmont, 350 Kimbark Street, Longmont, CO 80501. Always include your utility account number on the check.
What are the in-person payment hours and drop box details? Monday–Friday, 8:00 AM–5:00 PM at the Civic Center, 350 Kimbark Street. Use the after-hours drop box on the west side of Kimbark Street across from the Civic Center for check deposits.
How do I set up AutoPay for my Longmont utilities bill? Log into your account at https://myutilityaccount.longmontcolorado.gov/ and enroll through the Bills and Payments tab. It is free and automatic on the due date.
What services does City of Longmont Utilities provide? Electricity, water, sewer, solid waste collection, and storm drainage services for the City of Longmont, Colorado. (NextLight broadband is billed separately.)
How do I get help with billing questions or payment arrangements? Call (303) 651-8664 during business hours or visit the Civic Center. Flexible payment arrangements are available through customer service.
