States › Idaho
State · 2024 annual, monthly to Jul 2026
Idaho electricity prices and utilities
Households in Idaho paid an average of 11.52¢ per kilowatthour for electricity in 2024, 30% below the US average of 16.48¢. That ranks 50th highest of the 50 states and the District of Columbia.
The average residential bill was $108.73 a month on 944 kWh of monthly use (US: $142.26 on 863 kWh), the 46th highest bill. Residential sales came to 4,844 kWh per resident over the year.
In July 2026, the latest month EIA has published, the residential average was 13.73¢, up 11.8% on July 2025; the US figure for the month was 18.31¢. Monthly figures are preliminary until EIA finalises the year.
13 respondents reported residential customers in Idaho on the full Form EIA-861 for 2024, and 18 smaller utilities filed the short form, which has no residential breakdown. Investor-owned utilities account for 87.4% of the residential customers reported.
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. State averages are EIA's own, from Forms EIA-861 and EIA-861M.
Residential price by month
IdahoUnited States
Monthly pages:Jul 2026Jun 2026May 2026Apr 2026Mar 2026Feb 2026Jan 2026Dec 2025Nov 2025Oct 2025Sep 2025Aug 2025Jul 2025Jun 2025May 2025Apr 2025Mar 2025Feb 2025Jan 2025Dec 2024Nov 2024Oct 2024Sep 2024Aug 2024
Year by year
| Year | Residential ¢ | US ¢ | Commercial ¢ | Industrial ¢ | Monthly bill | kWh a month |
|---|---|---|---|---|---|---|
| 2026 to Jul 2026 | 12.96¢ | 18.19¢ | 9.67¢ | 8.14¢ | $118.62 | 915 |
| 2025 preliminary | 11.82¢ | 17.30¢ | 9.25¢ | 7.98¢ | $110.29 | 933 |
| 2024 | 11.52¢ | 16.48¢ | 9.17¢ | 7.69¢ | $108.73 | 944 |
| 2023 | 11.05¢ | 16.00¢ | 8.78¢ | 7.17¢ | $106.65 | 965 |
| 2022 | 10.37¢ | 15.04¢ | 8.27¢ | 6.71¢ | $104.23 | 1,005 |
| 2021 | 10.16¢ | 13.66¢ | 7.89¢ | 6.39¢ | $97.62 | 961 |
| 2020 | 9.95¢ | 13.15¢ | 7.75¢ | 6.23¢ | $95.04 | 955 |
| 2019 | 9.89¢ | 13.01¢ | 7.67¢ | 6.08¢ | $93.83 | 949 |
| 2018 | 10.15¢ | 12.87¢ | 7.93¢ | 6.47¢ | $95.84 | 945 |
| 2017 | 10.04¢ | 12.89¢ | 7.98¢ | 6.66¢ | $100.38 | 1,000 |
| 2016 | 9.95¢ | 12.55¢ | 7.76¢ | 6.55¢ | $94.90 | 953 |
| 2015 | 9.93¢ | 12.65¢ | 7.80¢ | 6.60¢ | $95.01 | 957 |
| 2014 | 9.72¢ | 12.52¢ | 7.78¢ | 6.40¢ | $95.51 | 982 |
| 2013 | 9.32¢ | 12.13¢ | 7.37¢ | 6.09¢ | $98.35 | 1,055 |
Nominal prices. The five-year change in the residential average is +16.5%. A part-year row covers January to the latest month published, so it is not comparable with full years: winter and summer months weigh differently.
Utilities by average residential price, 2024
Every filing with at least 100 bundled residential customers in Idaho, highest average price first. Linked utilities have 1,000 or more residential customers. A multi-state utility appears with its Idaho figures only.
| Utility | Ownership | Residential customers | ¢ per kWh | Monthly bill | SAIDI, all events | SAIDI, no major events |
|---|---|---|---|---|---|---|
| Kootenai Electric Cooperative | Cooperative | 30,378 | 12.21¢ | $138.01 | 186.8 | 125.0 |
| PacifiCorp | Investor-owned | 74,170 | 12.11¢ | $108.83 | 264.6 | 129.4 |
| Idaho Power Co | Investor-owned | 525,751 | 11.76¢ | $107.68 | 206.5 | 164.0 |
| Avista Corp | Investor-owned | 128,226 | 11.62¢ | $102.46 | 225.0 | 165.0 |
| Northern Lights, Inc | Cooperative | 18,511 | 11.49¢ | $124.45 | 1,612.0 | 1,219.7 |
| Fall River Rural Elec Coop Inc | Cooperative | 15,433 | 11.11¢ | $129.52 | 8.6 | 6.8 |
| City of Idaho Falls | Municipal | 28,142 | 9.25¢ | $87.99 | 72.4 | 72.4 |
| Raft Rural Elec Coop Inc | Cooperative | 1,391 | 9.18¢ | $137.07 | — | — |
| Salmon River Electric Coop Inc | Cooperative | 2,383 | 9.00¢ | $119.32 | 198.9 | 198.9 |
| Inland Power & Light Company | Cooperative | 2,115 | 8.92¢ | $129.76 | — | — |
| United Electric Co-op, Inc | Cooperative | 5,100 | 7.89¢ | $129.95 | 49.7 | 40.3 |
| Lower Valley Energy Inc | Cooperative | 1,636 | 7.23¢ | $77.32 | — | — |
Energy-only and delivery-only filings
These respondents bill part of the service in Idaho, so EIA's revenue figure for them is not a whole price and none is listed here.
| Respondent | Ownership | Residential customers |
|---|---|---|
| Missoula Electric Coop, Inc bundled, under 100 | Electric cooperatives | 46 |
Reliability by utility, 2024
SAIDI: minutes of sustained interruption per customer over the year, including major event days (paler bars: the utility reported only the figure without major event days). Median across 9 Idaho filings: 198.9 minutes with major event days, 129.4 without. EIA's state total: 232.8 and 174.0 minutes, with SAIFI of 1.31 interruptions per customer. Utilities use differing calculation methods, and a single storm can dominate a small utility's year.
| Year | Median SAIDI, all events | Median SAIDI, no major events | Filings | EIA state total, all events | EIA state total, no major events |
|---|---|---|---|---|---|
| 2024 | 198.9 | 129.4 | 9 | 232.8 | 174.0 |
| 2023 | 133.0 | 99.8 | 9 | 137.5 | 119.4 |
| 2022 | 152.5 | 151.7 | 7 | — | — |
| 2021 | 269.4 | 168.6 | 7 | — | — |
| 2020 | 389.0 | 160.5 | 7 | — | — |
| 2019 | 180.0 | 170.5 | 8 | — | — |
| 2018 | 267.4 | 206.1 | 7 | — | — |
| 2017 | 294.0 | 261.0 | 7 | — | — |
| 2016 | 251.7 | 159.4 | 7 | — | — |
| 2015 | 1,304.5 | 504.0 | 5 | — | — |
| 2014 | 333.7 | 205.1 | 6 | — | — |
| 2013 | 497.5 | 272.2 | 6 | — | — |
Sales by sector, 2024
| Sector | Sales | Share | ¢ per kWh |
|---|---|---|---|
| Residential | 9.8 TWh | 37% | 11.52¢ |
| Commercial | 7 TWh | 26% | 9.17¢ |
| Industrial | 9.6 TWh | 36% | 7.69¢ |
| All sectors | 26.4 TWh | 9.51¢ |
Residential sales per resident: 4,844 kWh a year, on a Census population estimate of 2,029,733.
Who serves Idaho
| Ownership | Filings | Residential customers | Share | Median ¢ |
|---|---|---|---|---|
| Investor-owned utilities | 3 | 728,147 | 87.4% | 11.76¢ |
| Electric cooperatives | 9 | 76,993 | 9.2% | 9.09¢ |
| Municipal utilities | 1 | 28,142 | 3.4% | 9.25¢ |
Customers as reported by each respondent. Where households buy energy from a retail supplier, the delivery utility and the supplier both report them, so shares describe filings, not households.
Counties
Each county page lists the utilities whose Form EIA-861 service territory includes it.
- Ada County 1
- Adams County 1
- Bannock County 2
- Bear Lake County 1
- Benewah County 5
- Bingham County 3
- Blaine County 3
- Boise County 1
- Bonner County 5
- Bonneville County 3
- Boundary County 2
- Butte County 3
- Camas County 1
- Canyon County 1
- Caribou County 3
- Cassia County 8
- Clark County 3
- Clearwater County 3
- Custer County 3
- Elmore County 2
- Franklin County 1
- Fremont County 3
- Gem County 2
- Gooding County 1
- Idaho County 5
- Jefferson County 3
- Jerome County 1
- Kootenai County 5
- Latah County 3
- Lemhi County 2
- Lewis County 3
- Lincoln County 1
- Madison County 3
- Minidoka County 9
- Nez Perce County 3
- Oneida County 3
- Owyhee County 2
- Payette County 1
- Power County 4
- Shoshone County 3
- Teton County 3
- Twin Falls County 1
- Valley County 1
- Washington County 2
Questions and answers
What is the average electricity price in Idaho?
11.52¢ per kilowatthour for residential customers in 2024, against a US average of 16.48¢. Commercial customers averaged 9.17¢ and industrial customers 7.69¢. The latest monthly residential figure is 13.73¢ for July 2026 (preliminary).
What is the average electric bill in Idaho?
$108.73 a month for residential customers in 2024, on average use of 944 kWh a month. The US average was $142.26 on 863 kWh.
Is electricity getting more expensive in Idaho?
The average residential price was up 4.3% in 2024 on the year before and up 16.5% on 2019. These are nominal prices, not adjusted for inflation.
How reliable is electric service in Idaho?
EIA's state total for 2024 is 232.8 minutes of interruption per customer including major event days and 174.0 minutes excluding them, across utilities reporting under any method. The median utility in the state reported 198.9 minutes including major event days.
How many electric utilities serve Idaho?
13 respondents reported residential customers in Idaho on the full Form EIA-861 for 2024; 12 of them have a bundled residential price. Another 18 small utilities filed the short form. 44 counties appear in service territories.
Provenance
Source: U.S. Energy Information Administration. State averages, sales and customers by year and month: Form EIA-861M sales and revenue workbook, through July 2026. Utility rows, reliability and service territories: Form EIA-861, 2024 final release. Population: U.S. Census Bureau Vintage 2025 estimates. Public domain. See methodology.