Electricity rates — Idaho

What households in Idaho pay, by EIA's count

Over the 12 months to June 2026, residential electricity in Idaho averaged 12.5¢ per kWh, the 2nd-lowest of the 50 states and DC and 30% below the US average of 17.9¢. It sits between North Dakota (12.3¢) and Nebraska (12.8¢).

EIA lists 13 utilities serving homes in Idaho. By homes served, the largest 5 are Idaho Power Co (525,751), Avista Corp (128,226), PacifiCorp (74,170), Kootenai Electric Cooperative (30,378), and City of Idaho Falls - (ID) (28,142). Member-owned cooperatives supply about 9% of its households.

Idaho homes used the most electricity in January and the least in October (2021–2025): a winter peak, 1.7 times the lightest month. October was the dearest month per kWh, 13% above February.

The utilities with a ranked plan on this page serve about 9% of Idaho's households: PacifiCorp (Idaho) (74,170). That is less than half the state, so the plans below describe those utilities, not Idaho; EIA's figure is the state's. Their median plan at 1,000 kWh a month works out to 10.3¢ per kWh.

What a typical bill costs

At 1,000 kWh a month one plan here is open to any household — Schedule 36 - Residential Service Optional TOD, at $1,233.08 a year. There is no cheaper option to move to, only the restricted schedules priced below.

Effective rates, bill divided by kilowatt-hours, come to 10.3¢ per kWh at that usage.

Who provides these plans

Every plan here comes from PacifiCorp (Idaho) — a limit of what has been indexed, not a claim that it is the only provider in Idaho. How each of its plans is built, and what changing between them saves, is set out on PacifiCorp (Idaho)'s own page.

What this does not cover

Only one utility in Idaho has been indexed so far, so the ranges above are not statewide. A household served by another provider will not find its plans here yet.

One of these plans prices by the hour, so its figure is marked lower confidence.