State electricity cost

How much does electricity cost in Idaho?

The average residential electricity rate in Idaho is 12.55¢ per kilowatt-hour (2026-04-ytd), the 3rd-cheapest state average in the U.S. That is 32% below the unweighted average of the 51 state averages (18.54¢/kWh).

Source: U.S. Energy Information Administration, Electric Power Monthly Table 5.6.B (2026-06-25). State averages are not household tariffs: taxes, fixed charges, and tiered or time-of-use pricing are not included.

Example monthly bills at the Idaho average rate

Engine-generated energy-portion estimates for three usage levels. Enter your own kWh in the bill estimator for a personalized range.

Monthly usage	Estimated range	Most likely
500 kWh	$51.96–$77.31	$62.75
1,000 kWh	$103.91–$154.62	$125.50
1,500 kWh	$155.87–$231.92	$188.25

What appliances cost to run in Idaho

Each row prices that appliance's reference scenario at the Idaho state-average rate through the appliance-energy engine. Open a guide to adjust watts, hours, and usage.

Appliance	Reference scenario	kWh/month	Estimated/month
Central air conditioner	8 hours a day with moderate cycling	504.00	$63.25
Space heater	6 hours a day on 20 days in a month	144.00	$18.07
Electric water heater	Elements active about 3 hours a day	405.00	$50.83
Refrigerator	150 watts with a 35% compressor duty cycle	37.80	$4.74
EV home charging (Level 2)	About 2.5 charging hours a day (~50 miles)	468.00	$58.73
Pool pump	8 hours a day at full draw	264.00	$33.13
Electric dryer	45-minute cycles, twelve times per month	22.95	$2.88
Television	5 hours a day of mixed viewing	16.50	$2.07

Source: U.S. Energy Information Administration, Electric Power Monthly Table 5.6.B. Data vintage 2026-04-ytd.

Frequently asked questions

What is the average electricity rate in Idaho?

The published state-average residential rate for Idaho is 12.55 cents per kilowatt-hour (2026-04-ytd, EIA). Your utility's tariff can differ meaningfully once fixed charges, taxes, and rate tiers are applied.

Is electricity in Idaho cheap or expensive compared with other states?

Idaho has the 3rd-cheapest state-average rate of the 51 averages we track, sitting 32% below the unweighted average of the 51 state averages (18.54¢/kWh).

Why is my actual Idaho bill different from these estimates?

These examples apply one state-average rate to assumed usage. Real bills add fixed monthly charges, taxes and fees, tiered or time-of-use pricing, and your household’s actual kilowatt-hours, which vary with weather and behavior.

Keep comparing

Nebraska — next-cheapest state average (12.38¢/kWh)
Missouri — next state average up (12.66¢/kWh)

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