How much does an electric baseboard heater cost per month in Idaho?

About $16.17 a month, assuming 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year at 14.37¢/kWh.

How many kilowatt-hours does an electric baseboard heater use?

Roughly 1,350 kWh a year under these assumptions, or 0.75 kWh for every hour it runs.

Is that expensive compared with other states?

Idaho has the 10th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $248 a year.

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Cost to run an electric baseboard heater in Idaho (June 2026 rates)

At 14.37¢ per kilowatt-hour — Idaho's average residential price in June 2026 — running an electric baseboard heater costs $194 a year. That is 22% less than the national average of $248. Idaho's residential rate is up 19.1% from June 2025, which moves this appliance from $163 to $194 a year.

Per hour: 10.8¢
Per day of use: $1.29
Per month: $16.17
Per year: $194

Assumption: 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year — 1,350 kWh a year. Per 6-foot section. A whole house typically has several running at once, so multiply by the number of sections in use. Use the calculator to swap in the numbers from your own model.

How Idaho compares

Idaho pays 14.37¢/kWh, the 10th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $53.59 less a year than the typical U.S. household pays for the same use. Running the same electric baseboard heater costs $177 a year in Nevada and $712 in Hawaii, so where you live changes this bill by $535 a year.

State	Rate	Per month	Per year
Kentucky	14.26¢	$16.04	$193
Oklahoma	14.33¢	$16.12	$193
Idaho	14.37¢	$16.17	$194
North Carolina	14.74¢	$16.58	$199
Mississippi	14.88¢	$16.74	$201

States ranked by average residential price, cheapest first. See all 51 states for an electric baseboard heater.

What else costs about the same in Idaho

Pool pump$248 a year in ID Garage refrigerator$129 a year in ID Space heater$124 a year in ID

Cutting the number down

Resistance heat is 1 kWh in, 1 kWh of heat out. There is no efficiency upgrade available; the only lever is running fewer of them, less often.
Furniture pushed against a baseboard blocks convection and makes the thermostat run the element longer.
Zoning by room is the built-in advantage. Turning unused rooms down to 55 F is where the savings live.

Questions

How much does an electric baseboard heater cost per month in Idaho?: About $16.17 a month, assuming 1,500 W at a 50% duty cycle, 12 hours a day, 150 days a year at 14.37¢/kWh.
How many kilowatt-hours does an electric baseboard heater use?: Roughly 1,350 kWh a year under these assumptions, or 0.75 kWh for every hour it runs.
Is that expensive compared with other states?: Idaho has the 10th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $248 a year.