City of Longmont Water Utilities and Utility Billing
Longmont and the City water service area
Population reference
Approximately 100,000 residents in Longmont; the City’s 2025 Census estimate is 100,109, and its capital planning materials describe AMI monitoring for approximately 30,000 water customers. The city provides water and sanitary sewer inside the existing city limits and has additional agreements and planning-area relationships outside the city boundary.
Billing detail
Broad public detail found
Official destination
Open provider website ↗Provider-specific findings
Billing and account research from public material
Provider-specific research notes are displayed separately from fields that contain only an unavailable-information marker. Read qualifiers in each note and verify current account terms with the provider.
- Billing frequency
- Monthly; utility bills are mailed approximately every 30 days, and the exact due date is printed on each bill.
- Rate structure
- Increasing block tiers with a fixed monthly meter charge. For a 5/8-inch meter inside city limits in 2026, the base charge is $11.91 per month, followed by $4.84 per 1,000 gallons for the first 5,000 gallons, $7.27 per 1,000 gallons for 5,001–15,000 gallons, $9.69 per 1,000 gallons for 15,001–35,000 gallons, and $13.08 per 1,000 gallons above 35,000 gallons. Outside-city rates are separately published at higher block prices. The schedule is effective January 1, 2026 through the next adopted change.
- Residential cost reference
- Using the published 2026 inside-city 5/8-inch water charge, water alone is approximately $36.11 at 5,000 gallons and $50.65 at 7,000 gallons. Adding the currently posted wastewater charge of $11.50 plus $7.82 per 1,000 gallons, and the residential storm-drainage charge of $18.85, produces an indicative combined bill of about $105.56 at 5,000 gallons or $135.74 at 7,000 gallons before sanitation, taxes, fees, or other services. The city labels the wastewater rates currently posted as effective January 1, 2025 until changed, so this is a planning estimate rather than a guaranteed 2026 total.
- Wastewater and sewer calculation
- The currently posted metered wastewater schedule lists a monthly base charge of $11.50 plus $7.82 per 1,000 gallons. An unmetered residential account is listed at a $51.67 monthly base. The reviewed rate page does not publish a separate residential winter-average formula for Longmont; the customer’s metered utility bill carries the posted wastewater charge, while the city’s current page identifies these wastewater values as continuing from January 1, 2025 until changed. Customers should confirm the applicable sewer class and any account-specific allocation with Utility Billing.
- Meter reading
- Longmont reports that more than 75,000 electric and water meters are read through automated meter infrastructure each month, without a routine property visit; capital-planning materials describe AMI monitoring for approximately 30,000 water customers, with device replacement on a roughly 10-year life cycle. The city’s sustainability indicator reports that about 99% of water meters are radio-read through AMR. The system supports continuous-flow detection, but the city says customer-facing notifications are manually sent after a minimum of 14 days rather than promising an automatic real-time customer alert. Water meters are also maintained and replaced on a scheduled annual program.
- New-account deposit
- For a new renter account, the current Longmont utility FAQ requires a $100 deposit, unless the applicant supplies a letter from the prior electric utility showing service was disconnected within the previous six months with no delinquent balance. Commercial accounts may require a deposit equal to three times the average monthly bill or a letter of credit. The reviewed public page does not publish a universal residential credit-check waiver or a fixed deposit-return period; account-specific conditions should be confirmed when service is requested.
- Activation or transfer fee
- Start, stop, and transfer requests can be made online, generally requiring three business days online or two business days by phone; the city asks customers to request connection at least one business day in advance. The reviewed current FAQ does not publish a separate routine residential activation or transfer fee. A $100 renter deposit may apply, and new physical connections, meter work, or development-related services can carry separate charges. Utility Billing can confirm the exact amount for a particular account.
Context, not a score
How documentation coverage compares
This profile
100%
overview fields with research notes
Colorado
68%
records with any overview detail
National index
50%
records with any overview detail
Coverage measures what this directory documented. It does not measure service quality, affordability, or regulatory compliance.
Research record
Broad public detail found
7 of 7 fields in this section contain provider-specific public detail in dataset August 1, 2026.
Documented
100%
Primary verification routes
- City of Longmont Water Utilities and Utility Billing public website ↗
Provider-controlled destination used to confirm current customer instructions.
- EPA Safe Drinking Water Information System ↗
Federal background on public water-system records and their limitations.