Rates by state / Idaho
Residential electricity · updated July 2026
Average electric bill in Idaho
The average Idaho home paid 12.7¢ per kWh and about $114 a month over the 12 months to July 2026, according to U.S. Energy Information Administration data. That rate is 30% below the U.S. average of 18.0¢, the 50th highest of 50 states and D.C.
Average rate
12 months to Jul 2026. Latest month 13.7¢.
Average bill
Average use × average rate
Average use
Per residential customer
1-year change
5 years: +26.6%
Idaho electric bills by month
What the average residential customer actually paid each month: total residential revenue ÷ customers. Source: EIA.
| Month | Avg use | Avg rate | Avg bill |
|---|---|---|---|
| July 2026 | 1,112 kWh | 13.7¢ | $153 |
| June 2026 | 794 kWh | 14.4¢ | $114 |
| May 2026 | 746 kWh | 12.3¢ | $92 |
| April 2026 | 763 kWh | 12.7¢ | $97 |
| March 2026 | 866 kWh | 13.0¢ | $113 |
| February 2026 | 944 kWh | 12.6¢ | $119 |
| January 2026 | 1,183 kWh | 12.1¢ | $143 |
| December 2025 | 1,060 kWh | 11.9¢ | $126 |
| November 2025 | 859 kWh | 12.3¢ | $105 |
| October 2025 | 737 kWh | 12.5¢ | $92 |
| September 2025 | 787 kWh | 12.5¢ | $98 |
| August 2025 | 992 kWh | 12.1¢ | $120 |
Typical bill by home size in Idaho
Monthly use of typical homes, all household sizes, priced at Idaho's average rate of 12.7¢. Source: EIA RECS 2020 and EIA retail sales.
| Home size | Typical use | Most homes | Typical bill |
|---|---|---|---|
| Under 1,000 sq ft | 399 kWh | 253–608 kWh | $51 |
| 1,000–1,499 sq ft | 567 kWh | 394–811 kWh | $72 |
| 1,500–1,999 sq ft | 709 kWh | 501–994 kWh | $90 |
| 2,000–2,999 sq ft | 832 kWh | 616–1,157 kWh | $105 |
| 3,000+ sq ft | 1,067 kWh | 789–1,544 kWh | $135 |
Summer and winter months run higher than these yearly averages. Check your own bill to compare a specific month.
What uses the most electricity in Idaho homes
Average yearly use by purpose for Idaho homes, priced at 12.7¢ per kWh. Source: EIA RECS 2020 (270 surveyed homes).
- 26% of Idaho homes heat mainly with electricity. They use about 12,855 kWh a year, against 10,459 kWh in homes heated another way.
Monthly rate, last 5 years
Monthly prices swing with the season because fixed charges are spread over fewer or more kWh.
How much electricity Idaho homes use
Electricity rates by utility in Idaho
Average residential revenue per kWh in 2025, largest 13 of 13 by customers. Source: EIA-861.
| Utility | Customers | Rate | Avg use / mo | 1-yr change |
|---|---|---|---|---|
| Idaho Power Co | 540,032 | 11.8¢ | 899 kWh | +0.2% |
| Avista Corp | 129,181 | 11.8¢ | 900 kWh | +1.9% |
| PacifiCorp | 75,599 | 13.5¢ | 889 kWh | +11.7% |
| Kootenai Electric Cooperative | 31,004 | 13.4¢ | 1,120 kWh | +10.1% |
| City of Idaho Falls - (ID) | 29,403 | 9.6¢ | 925 kWh | +3.8% |
| Northern Lights, Inc | 18,172 | 12.2¢ | 1,116 kWh | +5.9% |
| Fall River Rural Elec Coop Inc | 15,952 | 11.1¢ | 1,172 kWh | 0.0% |
| United Electric Co-op, Inc - (ID) | 5,169 | 8.5¢ | 1,580 kWh | +7.7% |
| Salmon River Electric Coop Inc | 2,426 | 9.9¢ | 1,251 kWh | +9.7% |
| Inland Power & Light Company | 2,175 | 9.4¢ | 1,441 kWh | +5.9% |
| Lower Valley Energy Inc | 1,663 | 7.8¢ | 1,077 kWh | +8.4% |
| Raft Rural Elec Coop Inc | 1,398 | 10.2¢ | 1,436 kWh | +10.7% |
| Missoula Electric Coop, Inc | 44 | 10.5¢ | 1,148 kWh | +5.0% |
Idaho electricity: common questions
- What is the average electric bill in Idaho?
- The average Idaho household pays about $114 a month for electricity, based on 903 kWh of use at 12.7¢ per kWh over the 12 months to July 2026 (U.S. Energy Information Administration data).
- How much does electricity cost per kWh in Idaho?
- Residential electricity in Idaho averaged 12.7¢ per kWh over the 12 months to July 2026, and 13.7¢ in July 2026 alone. That is 30% below the U.S. average of 18.0¢, the 50th highest of the 50 states and D.C. These averages spread fixed service charges and surcharges over each kWh. Sales taxes added to bills may not be included.
- When are electric bills highest in Idaho?
- In the last 12 months, the average Idaho bill peaked in July 2026 at $153 and was lowest in October 2025 at $92.
- How much electricity does a 1,500–1,999 sq ft home use in Idaho?
- A typical Idaho home of 1,500–1,999 square feet uses about 709 kWh a month, and most use between 501 and 994 kWh. At the state's average rate that is roughly $90 a month. Based on EIA's Residential Energy Consumption Survey (RECS 2020).
- Are electricity rates going up in Idaho?
- Idaho's average residential rate changed +8.9% compared with the previous 12 months and +26.6% over five years.
- What uses the most electricity in Idaho homes?
- In a typical Idaho home, space heating uses the most electricity (about 1,937 kWh a year, 17% of the total), followed by everything else plugged in (17%) and water heating (16%). Homes heated with electricity use about 12,855 kWh a year, compared with 10,459 kWh for homes heated another way. Source: EIA RECS 2020.
- How do I know if my Idaho electric bill is too high?
- Compare two things: how many kWh you used against similar homes, and what you paid per kWh against the state average. The free bill check on AverageElectricBill.com does both from the numbers on your bill, adjusting for the month and your home's size.