Colorado · Municipal
City of Longmont
13.12¢ per kWh, bundled, EIA-861 2025. Average bill $88.39 at 673.7 kWh a month, across 41,483 customers on that row.
Colorado averaged 15.69¢/kWh and $103.30 a month. The United States averaged 17.23¢/kWh and $150.68. State and national figures come from EIA's Average Bill file.
Revenue divided by sales, EIA-861 Sales to Ultimate Customers, 2025, released October 7, 2026. Texas wires utilities come from the Delivery Companies file. The price and bill use bundled service. Customer count: 41,483, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$131.20
13.12¢/kWh × 1,000 kWh. Bundled residential average, EIA-861 2025. The customer charge is already folded into this average, so it stands beside a tariff total rather than being added to it.
Annual history
| Year | ¢/kWh | Avg. bill | Avg. kWh | Customers |
|---|---|---|---|---|
| 2015 | 9.40¢ | $66.92 | 712.0 | 35,465 |
| 2016 | 9.29¢ | $66.59 | 716.6 | 35,721 |
| 2017 | 9.71¢ | $67.50 | 695.0 | 36,392 |
| 2018 | 9.70¢ | $68.52 | 706.2 | 37,326 |
| 2019 | 9.73¢ | $67.10 | 689.3 | 38,463 |
| 2020 | 10.25¢ | $74.33 | 724.9 | 39,186 |
| 2021 | 10.81¢ | $77.69 | 718.7 | 39,688 |
| 2022 | 11.09¢ | $78.01 | 703.1 | 39,986 |
| 2023 | 11.59¢ | $77.85 | 671.6 | 40,386 |
| 2024 | 12.30¢ | $85.05 | 691.4 | 40,855 |
| 2025 | 13.12¢ | $88.39 | 673.7 | 41,483 |
EIA-861, 2015–2025, using the same service type as the 2025 figure. A blank year means that service was not in the file.
Counties
Boulder, Weld.
EIA-861 Service Territory, 2025. A listed county is the county EIA recorded. It does not mean every address in the county is served. Open this utility in the bill calculator · Rate history tool