How much does a hot tub cost per month in Colorado?

About $35.77 a month, assuming 2,500 kWh a year at 17.17¢/kWh.

How many kilowatt-hours does a hot tub use?

Roughly 2,500 kWh a year under these assumptions.

Is that expensive compared with other states?

Colorado has the 22nd most expensive average residential rate in the country, so this appliance costs less here than the U.S. average of $454 a year.

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Cost to run a hot tub in Colorado (August 2026 rates)

At 17.17¢ per kilowatt-hour — Colorado's average residential price in August 2026 — running a hot tub costs $429 a year. That is 5% less than the national average of $454. Colorado's residential rate is up 5.9% from August 2025, which moves this appliance from $405 to $429 a year.

Per day: $1.18
Per month: $35.77
Per year: $429

Assumption: 2,500 kWh a year. A well-insulated 400-gallon tub held at 100 F year-round in a moderate climate. A poorly insulated tub in a cold climate can double this. Use the calculator to swap in the numbers from your own model.

How Colorado compares

Colorado pays 17.17¢/kWh, the 22nd most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $24.75 less a year than the typical U.S. household pays for the same use. Running the same hot tub costs $318 a year in Nevada and $1,180 in Hawaii, so where you live changes this bill by $862 a year.

State	Rate	Per month	Per year
Indiana	17.02¢	$35.46	$426
Iowa	17.06¢	$35.54	$426
Colorado	17.17¢	$35.77	$429
Minnesota	17.20¢	$35.83	$430
Virginia	17.64¢	$36.75	$441

States ranked by average residential price, cheapest first. See all 51 states for a hot tub.

What else costs about the same in Colorado

Central air conditioner$404 a year in CO Heat pump$371 a year in CO Pool pump$297 a year in CO

Cutting the number down

A good cover is the whole ballgame. Most of the energy replaces heat lost from the surface, not heat delivered to people.
Holding temperature usually beats cooling down and reheating, because reheating a large mass of water is expensive.
A waterlogged cover has lost its insulation value and quietly doubles the standing loss.

Questions

How much does a hot tub cost per month in Colorado?: About $35.77 a month, assuming 2,500 kWh a year at 17.17¢/kWh.
How many kilowatt-hours does a hot tub use?: Roughly 2,500 kWh a year under these assumptions.
Is that expensive compared with other states?: Colorado has the 22nd most expensive average residential rate in the country, so this appliance costs less here than the U.S. average of $454 a year.