Idaho (ID) electricity and natural gas rates
Electricity
13.73¢
per kWh
Natural gas
$1.28
per therm
Gas and electricity in the same unit
A therm is 29.3 kilowatt hours of energy, so Idaho's gas works out at 4.37¢ per kWh against 13.73¢ for electricity.
That compares the energy you buy, not the heat you get. A furnace throws away a fifth of every therm up the flue, while a heat pump delivers two to three times the heat in a kilowatt hour — so the cheaper unit here is not automatically the cheaper way to heat a house.
Residential sector, US Energy Information Administration, 2026-07. Updated monthly.
How Idaho compares
At 13.73¢ per kWh, Idaho is below the national average of 19.26¢, making it the 6th cheapest of the 51 states we track.
What a typical Idaho household uses
Electricity a month
904 kWh
Bill a month
$114
Households in Idaho use 5% more electricity than the national average and pay 24% less than average. Cheap power absorbs most of that: the meter turns faster here, but at 13.73¢ each unit costs less than it does nationally. The climate is fairly balanced — 5,800 heating degree days against 700 cooling ones — so neither season dominates the bill.
More on this: the average electric bill in Idaho, including how far it swings between seasons.
Averaged over twelve months across 908,465 residential accounts in Idaho. Source: EIA.
What this means for heating
Idaho sees around 150 freezing nights a year. Whether a heat pump beats a furnace here depends on the gap between those two prices above — not on the equipment.
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Everything in Idaho
All five figures at once
Average electric bill in Idaho
What households pay
Cost to run AC in Idaho
Per hour and per year
Cost to heat a home in Idaho
Gas vs heat pump
Heat pump cost in Idaho
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Furnace replacement cost in Idaho
What a new one costs
Solar payback in Idaho
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