Electricity prices in Idaho
Homes in Idaho paid an average of 13.37 cents per kilowatt-hour for electricity in August 2026, compared with 12.08 cents a year earlier. Over the 12 months to August 2026 the average was 12.77 cents, the 49th highest of the 50 states and DC. The US average over the same period was 18.04 cents.
Monthly price since 2017
IdahoUS average
Average residential revenue per kilowatt-hour sold, in cents, each month. Prices usually rise in summer in many states because of tiered and seasonal rates.
Year by year
| Year | Price (cents/kWh) | Average monthly bill | Average monthly use (kWh) | Residential customers |
|---|---|---|---|---|
| 2025 | 11.83 | $110 | 933 | 887,745 |
| 2024 | 11.52 | $109 | 944 | 868,141 |
| 2023 | 11.05 | $107 | 965 | 845,895 |
| 2022 | 10.37 | $104 | 1,005 | 826,326 |
| 2021 | 10.16 | $98 | 961 | 806,422 |
| 2020 | 9.95 | $95 | 955 | 782,558 |
| 2019 | 9.89 | $94 | 949 | 763,842 |
| 2018 | 10.15 | $96 | 945 | 743,564 |
| 2017 | 10.04 | $100 | 1,000 | 727,567 |
| 2016 | 9.95 | $95 | 953 | 714,364 |
| 2015 | 9.93 | $95 | 957 | 701,448 |
| 2014 | 9.72 | $96 | 982 | 690,276 |
| 2013 | 9.32 | $98 | 1,055 | 680,929 |
| 2012 | 8.67 | $88 | 1,010 | 673,366 |
| 2011 | 7.87 | $83 | 1,048 | 667,242 |
| 2010 | 7.99 | $81 | 1,020 | 664,716 |
Full calendar years with final EIA data. Bills and use are averages per residential customer account.
Last 24 months
| Month | Price (cents/kWh) | Average bill | Average use (kWh) |
|---|---|---|---|
| August 2026 (preliminary) | 13.37 | $137 | 1,026 |
| July 2026 (preliminary) | 13.73 | $153 | 1,112 |
| June 2026 (preliminary) | 14.37 | $114 | 794 |
| May 2026 (preliminary) | 12.35 | $92 | 746 |
| April 2026 (preliminary) | 12.70 | $97 | 763 |
| March 2026 (preliminary) | 13.00 | $113 | 866 |
| February 2026 (preliminary) | 12.63 | $119 | 944 |
| January 2026 (preliminary) | 12.06 | $143 | 1,183 |
| December 2025 | 11.88 | $126 | 1,060 |
| November 2025 | 12.25 | $105 | 860 |
| October 2025 | 12.46 | $92 | 737 |
| September 2025 | 12.50 | $98 | 787 |
| August 2025 | 12.08 | $120 | 992 |
| July 2025 | 12.28 | $130 | 1,059 |
| June 2025 | 12.12 | $103 | 848 |
| May 2025 | 11.89 | $89 | 746 |
| April 2025 | 11.90 | $91 | 764 |
| March 2025 | 11.58 | $109 | 939 |
| February 2025 | 10.96 | $124 | 1,130 |
| January 2025 | 10.83 | $138 | 1,276 |
| December 2024 | 10.95 | $129 | 1,173 |
| November 2024 | 11.28 | $107 | 952 |
| October 2024 | 12.20 | $88 | 718 |
| September 2024 | 12.36 | $94 | 760 |
Utilities in Idaho, 2025
Full-service (bundled) residential customers by utility for 2025, from the annual EIA-861 survey. Select a heading to sort.
| Idaho Power Co | investor-owned utility | 540,032 | 11.78 | $106 |
| Avista Corp | investor-owned utility | 129,181 | 11.84 | $107 |
| PacifiCorp | investor-owned utility | 75,599 | 13.53 | $120 |
| Kootenai Electric Cooperative | electric cooperative | 31,004 | 13.44 | $150 |
| City of Idaho Falls | municipal utility | 29,403 | 9.60 | $89 |
| Northern Lights, Inc | electric cooperative | 18,172 | 12.17 | $136 |
| Fall River Rural Elec Coop Inc | electric cooperative | 15,952 | 11.11 | $130 |
| United Electric Co-op, Inc | electric cooperative | 5,169 | 8.50 | $134 |
| Salmon River Electric Coop Inc | electric cooperative | 2,426 | 9.87 | $123 |
| Inland Power & Light Company | electric cooperative | 2,175 | 9.45 | $136 |
| Lower Valley Energy Inc | electric cooperative | 1,663 | 7.84 | $84 |
| Raft Rural Elec Coop Inc | electric cooperative | 1,398 | 10.16 | $146 |
Reliability across Idaho in 2025: the average customer was without power for 322 minutes over 1.16 interruptions, or 149 minutes excluding major storms and other major event days. This is EIA's state total for utilities reporting under any standard, covering 902,180 customers.
If your bill is hard to pay
The federal Low Income Home Energy Assistance Program (LIHEAP) helps with heating and cooling bills. Find your state office on the LIHEAP page. Your state utility commission handles complaints about utility billing and rates.
Sources
- US Energy Information Administration, Annual Electric Power Industry Report, Form EIA-861, 2025 and 2024 detailed data (Sales to Ultimate Customers, Reliability, Service Territory, Average Bill)
- US Energy Information Administration, Electric power sales, revenue, and energy efficiency, Form EIA-861M detailed data (sales_revenue.xlsx), monthly 2010 to August 2026
- US Energy Information Administration, Electric Power Monthly, Table 5.6.A and Table 5.6.B, average price of electricity by state (used to cross-check every state figure for August 2026)
Checked 29 October 2026. Figures for 2026 are preliminary and EIA may revise them. These are statewide averages, not the rate on your bill.