How Much Is Electricity in Idaho? 12.7¢ per kWh
Idaho households pay an average of 12.7¢ per kWh — 30% below the U.S. average of 18.0¢ per kWh, and the 50th highest of the 50 states and DC. Figures are from the U.S. Energy Information Administration (12-month average through July 2026), residential sector, average revenue per kWh.
What common appliances cost to run in Idaho
Based on the average model we hold in each category, at 12.7¢ per kWh.
| Appliance | Average kWh a year | Per year | Per month |
|---|---|---|---|
| Refrigerators | 354 | $45 | about $4 a month |
| Freezers | 328 | $42 | about $3 a month |
| Wine Coolers | 147 | $19 | about $2 a month |
| Clothes Washers | 121 | $15 | about $1 a month |
| Clothes Dryers | 515 | $65 | about $5 a month |
| Dishwashers | 237 | $30 | about $3 a month |
| Room Air Conditioners | 592 | $75 | about $6 a month |
| Water Heaters | 1123 | $142 | about $12 a month |
The most efficient model in each category
Recent months
- July 2025 12.3¢
- August 2025 12.1¢
- September 2025 12.5¢
- October 2025 12.5¢
- November 2025 12.3¢
- December 2025 11.9¢
- January 2026 12.1¢
- February 2026 12.6¢
- March 2026 13.0¢
- April 2026 12.7¢
- May 2026 12.3¢
- June 2026 14.4¢
- July 2026 13.7¢