Idaho vs Washington: Electricity Rates & Average Bills
Side-by-side residential bills, cents-per-kWh, usage and 12-month trends — June 2026 EIA data.
Data through June 2026
EIA-826, verified Oct 12, 2026
The average residential bill in Idaho ($114.05/mo) runs $0.46/mo (0%) higher than Washington ($113.59/mo).
Idaho bill$114.05/mo#47 highest of 51
Washington bill$113.59/mo#49 highest of 51
US context$164.05/mostates median
The numbers, side by side
Latest month from EIA residential retail-sales data, plus each state's rank among tracked states.
| Measure | Idaho | Washington |
|---|---|---|
| Avg monthly bill | $114.05 | $113.59 |
| Price per kWh | 14.37¢ | 14.91¢ |
| Typical usage | 794 kWh/mo | 762 kWh/mo |
| Bill rank | Highest: #47 · Price: #42 | Highest: #49 · Price: #39 |
| Bill, 12-mo change | −12.3% | −3.2% |
Idaho bill trend
Average residential bill, last 12 months.
Washington bill trend
Average residential bill, last 12 months.
Common questions
Is Idaho or Washington more expensive for electricity?
Idaho is — the average residential bill there is $0.46/month higher than Washington's ($113.59/month).
How much bigger is Idaho's bill than Washington's?
About 0% higher — $114.05 vs $113.59 per month in the latest EIA data.
Bill = residential revenue ÷ customers; price = revenue ÷ sales. See the methodology and each state's page: Idaho · Washington.