Idaho vs Washington electricity prices: 11.82 ¢ against 13.11 ¢ per kWh
39 places apart: Idaho #46, Washington #7 of 51, the widest of 31 measures. price change 2024 to 2025 Idaho +2.6%, Washington +10.2%; heat pump saving on gas Idaho -48%, Washington +28%. Typical bills differ by $15 a month, higher in Washington.
Over a year the typical energy bill differs by $178 ($110 a month in Idaho, $125 in Washington). Since 2015 the home price rose +19.0% in Idaho and +44.2% in Washington: 25.2 points more in Washington. Against the U.S. home average Idaho sits at -31.7% and Washington at -24.2%.
Idaho against Washington: widest gaps
| Measure | Idaho | Washington | Gap | Rank (of 51) |
|---|---|---|---|---|
| Price change since 2015 | +19% | +44% | -25.2 points | #46 / #7 |
| Price change 2024 to 2025 | +2.6% | +10.2% | -7.6 points | #42 / #5 |
| Heat pump saving on gas | -48% | +28% | -76.2 points | #40 / #5 |
| Heat pump break-even COP | 4.43 | 2.15 | +2.29 | #6 / #41 |
| Major-event outage minutes | 92 | 405 | -313 | #37 / #11 |
| Solar output per kW | 1,371 | 1,062 | +309 | #27 / #50 |
| Homes on retail supply | 0.0% | 0.0% | +0.0 points | #25 / #48 |
| Median household income | $74,636 | $94,952 | -$20,316 | #30 / #8 |
| Heating degree-days, normal year | 7,220 | 5,939 | +1,281 | #12 / #24 |
31 measures compared for Idaho and Washington; the CSV holds the 9 widest.
CSVIdaho and Washington: price over time
Home price, Idaho and Washington, 2010 to 2025: 16 rows
| Year | Idaho | Washington | Gap to U.S. |
|---|---|---|---|
| 2010 | 7.99 | 8.04 | -3.55 |
| 2011 | 7.87 | 8.28 | -3.85 |
| 2012 | 8.67 | 8.53 | -3.21 |
| 2013 | 9.32 | 8.70 | -2.81 |
| 2014 | 9.72 | 8.67 | -2.80 |
| 2015 | 9.93 | 9.09 | -2.72 |
| 2016 | 9.95 | 9.48 | -2.60 |
| 2017 | 10.04 | 9.66 | -2.85 |
| 2018 | 10.15 | 9.75 | -2.72 |
| 2019 | 9.89 | 9.71 | -3.12 |
| 2020 | 9.95 | 9.87 | -3.20 |
| 2021 | 10.16 | 10.11 | -3.50 |
| 2022 | 10.37 | 10.26 | -4.67 |
| 2023 | 11.05 | 10.98 | -4.95 |
| 2024 | 11.52 | 11.90 | -4.96 |
| 2025 | 11.82 | 13.11 | -5.48 |
Idaho 7.99 to 11.82 ¢ and Washington 8.04 to 13.11 ¢ between 2010 and 2025 (EIA).
CSVTypical bill by month, Idaho and Washington: 12 rows
| Month | Idaho | Washington |
|---|---|---|
| Jan | 138 | 160 |
| Feb | 124 | 157 |
| Mar | 109 | 140 |
| Apr | 91 | 113 |
| May | 89 | 103 |
| Jun | 103 | 102 |
| Jul | 130 | 117 |
| Aug | 120 | 115 |
| Sep | 98 | 103 |
| Oct | 92 | 110 |
| Nov | 105 | 124 |
| Dec | 126 | 157 |
Monthly typical bill: $89 to $138 in Idaho, $102 to $160 in Washington.
CSVYour bill in Idaho and in Washington
Idaho and Washington on the map
Where Idaho and Washington are alike
- Bill as share of income: 1.77% and 1.58%
- CO2 per MWh of generation, lb: 313 and 265
- Clean share with nuclear: 68.5% and 80.8%
- Hydro share of generation: 43.6% and 63.6%
- Average home use, kWh a month: 933 and 955
Sources and dates: data sources.
Questions
Is Idaho or Washington higher on price change since 2015?
Washington, by 25.2 points; they rank #46 and #7 of 51.
Is Idaho or Washington higher on price change 2024 to 2025?
Washington, by 7.6 points; they rank #42 and #5 of 51.
Is Idaho or Washington higher on heat pump saving on gas?
Washington, by 76.2 points; they rank #40 and #5 of 45.
Is Idaho or Washington higher on heat pump break-even COP?
Idaho, by 2.29; they rank #6 and #41 of 45.
Is Idaho or Washington higher on major-event outage minutes?
Washington, by 313; they rank #37 and #11 of 47.
What would 878 kWh a month cost in Idaho and in Washington?
Idaho $104, Washington $115: $11 apart, energy only.
Where do Idaho and Washington match most closely?
bill as share of income (1.77% and 1.58%); CO2 per mwh of generation, lb (313 and 265); clean share with nuclear (68.5% and 80.8%).