States › Idaho › December 2025
Idaho electricity prices, December 2025
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In December 2025, residential customers in Idaho paid an average of 11.87¢ per kilowatthour, up 8.4% on the same month a year earlier (10.95¢). The US average for the month was 17.24¢; Idaho was 31% below that. It ranked 49th highest among the 50 states and the District of Columbia.
Residential sales were 951,334 MWh, down 7.7% on a year earlier, and the average residential bill for the month was $125.84 on 1,060 kWh. Weather moves monthly sales far more than prices do, so bills swing with the season.
EIA marks this month as preliminary. Preliminary months come from the Form EIA-861M sample and are revised when the annual census is complete.
Average price is revenue divided by sales for the sector and year; it is not a tariff rate. Reliability figures are as reported by utilities to EIA on Form 861 and may use different calculation methods. Monthly figures come from the Form EIA-861M sample and are revised when EIA finalises the year.
Price by sector
| Sector | Dec 2025 | Dec 2024 | Change | US, Dec 2025 |
|---|---|---|---|---|
| Residential | 11.87¢ | 10.95¢ | +8.4% | 17.24¢ |
| Commercial | 8.90¢ | 8.32¢ | +7.0% | 13.63¢ |
| Industrial | 6.78¢ | 6.46¢ | +5.0% | 8.53¢ |
| All sectors | 9.63¢ | 9.04¢ | +6.5% | 13.73¢ |
Sales and customers
| Measure | Dec 2025 | Dec 2024 | Change |
|---|---|---|---|
| Residential sales | 951.3 GWh | 1 TWh | -7.7% |
| Sales, all sectors | 2.1 TWh | 2.2 TWh | -3.6% |
| Residential customers | 897,682 | 878,443 | +2.2% |
| Average residential bill | $125.84 | $128.53 | -2.1% |
| Average residential use, kWh | 1,060 | 1,173 | -9.6% |
| US residential price | 17.24¢ | 16.27¢ | +6.0% |
The two years to December 2025
Idaho residentialUS residential
Questions and answers
What was the average electricity price in Idaho in December 2025?
11.87¢ per kilowatthour for residential customers, 8.90¢ for commercial and 6.78¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 10.95¢ in December 2024, a change of +8.4%. Residential sales changed by -7.7% over the same period.
What was the average residential bill that month?
$125.84, on average use of 1,060 kWh. This is residential revenue divided by residential customers for the month.
Provenance
Source: U.S. Energy Information Administration, Form EIA-861M sales and revenue workbook (state by sector and month), status "Preliminary" for this month, series published through July 2026. Public domain. Price = revenue ÷ sales; bill = residential revenue ÷ residential customers. Utility-level annual figures are on the Idaho page.