Idaho · Investor Owned
Avista Corp
11.84¢ per kWh, bundled, EIA-861 2025. Average bill $106.63 at 900.3 kWh a month, across 129,181 customers on that row.
Idaho averaged 11.83¢/kWh and $110.36 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: 129,181, the largest residential count across service types.
Estimate a bill
The figure below is this utility's 2025 EIA residential average.
2025 EIA average
$118.40
11.84¢/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 | 9.49¢ | $82.13 | 865.6 | 110,394 |
| 2016 | 9.54¢ | $81.52 | 854.2 | 111,508 |
| 2017 | 9.87¢ | $90.31 | 915.1 | 113,236 |
| 2018 | 10.19¢ | $87.29 | 856.3 | 115,122 |
| 2019 | 9.67¢ | $84.60 | 874.6 | 117,354 |
| 2020 | 9.86¢ | $87.30 | 885.5 | 118,386 |
| 2021 | 9.94¢ | $88.48 | 890.6 | 122,360 |
| 2022 | 9.87¢ | $92.13 | 933.3 | 123,965 |
| 2023 | 10.17¢ | $90.84 | 892.8 | 126,548 |
| 2024 | 11.62¢ | $102.46 | 881.5 | 128,226 |
| 2025 | 11.84¢ | $106.63 | 900.3 | 129,181 |
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
Benewah, Bonner, Clearwater, Idaho, Kootenai, Latah, Lewis, Nez Perce, Shoshone.
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