How much does a hot tub cost per month in New Jersey?

About $52.48 a month, assuming 2,500 kWh a year at 25.19¢/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?

New Jersey has the 10th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $458 a year.

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Cost to run a hot tub in New Jersey (July 2026 rates)

At 25.19¢ per kilowatt-hour — New Jersey's average residential price in July 2026 — running a hot tub costs $630 a year. That is 38% more than the national average of $458. New Jersey's residential rate is down 0.5% from July 2025, which moves this appliance from $633 to $630 a year.

Per day: $1.73
Per month: $52.48
Per year: $630

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 New Jersey compares

New Jersey pays 25.19¢/kWh, the 10th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $172 more a year than the typical U.S. household pays for the same use. Running the same hot tub costs $318 a year in Louisiana and $1,200 in Hawaii, so where you live changes this bill by $882 a year.

State	Rate	Per month	Per year
Vermont	23.75¢	$49.48	$594
Connecticut	24.16¢	$50.33	$604
New Jersey	25.19¢	$52.48	$630
District of Columbia	25.21¢	$52.52	$630
New Hampshire	26.60¢	$55.42	$665

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

What else costs about the same in New Jersey

Central air conditioner$592 a year in NJ Heat pump$544 a year in NJ Pool pump$435 a year in NJ

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 New Jersey?: About $52.48 a month, assuming 2,500 kWh a year at 25.19¢/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?: New Jersey has the 10th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $458 a year.