Idaho electricity prices, May 2026
Average price, sales and bills for the month against the same month a year earlier and the US. Preliminary
In May 2026, residential customers in Idaho paid an average of 12.35¢ per kilowatthour, up 4.0% on the same month a year earlier (11.88¢). The US average for the month was 18.44¢; Idaho was 33% below that. It ranked 51st highest among the 50 states and the District of Columbia.
Residential sales were 675,054 MWh, up 2.4% on a year earlier, and the average residential bill for the month was $92.13 on 746 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 | May 2026 | May 2025 | Change | US, May 2026 |
|---|---|---|---|---|
| Residential | 12.35¢ | 11.88¢ | +4.0% | 18.44¢ |
| Commercial | 9.34¢ | 9.72¢ | -3.9% | 13.54¢ |
| Industrial | 7.21¢ | 7.73¢ | -6.7% | 8.71¢ |
| All sectors | 9.22¢ | 9.46¢ | -2.5% | 13.83¢ |
Sales and customers
| Measure | May 2026 | May 2025 | Change |
|---|---|---|---|
| Residential sales | 675.1 GWh | 659.4 GWh | +2.4% |
| Sales, all sectors | 2.3 TWh | 2.2 TWh | +6.1% |
| Residential customers | 904,530 | 884,383 | +2.3% |
| Average residential bill | $92.13 | $88.58 | +4.0% |
| Average residential use, kWh | 746 | 746 | 0.0% |
| US residential price | 18.44¢ | 17.37¢ | +6.2% |
The two years to May 2026
Idaho residentialUS residential
Questions and answers
What was the average electricity price in Idaho in May 2026?
12.35¢ per kilowatthour for residential customers, 9.34¢ for commercial and 7.21¢ for industrial customers. EIA marks the month as preliminary.
How does that compare with a year earlier?
The residential average was 11.88¢ in May 2025, a change of +4.0%. Residential sales changed by +2.4% over the same period.
What was the average residential bill that month?
$92.13, on average use of 746 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.