How much does a pool pump cost per month in Washington?

About $21.18 a month, assuming 1,200 W, 8 hours a day, 180 days a year at 14.71¢/kWh.

How many kilowatt-hours does a pool pump use?

Roughly 1,728 kWh a year under these assumptions, or 1.20 kWh for every hour it runs.

Is that expensive compared with other states?

Washington has the 13th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $316 a year.

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Cost to run a pool pump in Washington (July 2026 rates)

At 14.71¢ per kilowatt-hour — Washington's average residential price in July 2026 — running a pool pump costs $254 a year. That is 20% less than the national average of $316. Washington's residential rate is up 9.4% from July 2025, which moves this appliance from $232 to $254 a year.

Per hour: 17.7¢
Per day of use: $1.41
Per month: $21.18
Per year: $254

Assumption: 1,200 W, 8 hours a day, 180 days a year — 1,728 kWh a year. A single-speed 1.5 HP pump. Variable-speed pumps running longer at low speed use a fraction of this. Use the calculator to swap in the numbers from your own model.

Related calculators: see what running slower for longer saves.

How Washington compares

Washington pays 14.71¢/kWh, the 13th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $62.21 less a year than the typical U.S. household pays for the same use. Running the same pool pump costs $220 a year in Louisiana and $829 in Hawaii, so where you live changes this bill by $610 a year.

State	Rate	Per month	Per year
Wyoming	14.36¢	$20.68	$248
Mississippi	14.54¢	$20.94	$251
Washington	14.71¢	$21.18	$254
Montana	14.99¢	$21.59	$259
Florida	15.03¢	$21.64	$260

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

What else costs about the same in Washington

Electric baseboard heater$199 a year in WA Heat pump$318 a year in WA Central air conditioner$346 a year in WA

Cutting the number down

Pump power rises roughly with the cube of speed, so running at half speed for twice as long uses about a quarter of the energy.
Most pools are turned over more often than they need. Cutting an hour a day is free money all season.
A variable-speed pump is one of the few upgrades that routinely pays back within two seasons.

Questions

How much does a pool pump cost per month in Washington?: About $21.18 a month, assuming 1,200 W, 8 hours a day, 180 days a year at 14.71¢/kWh.
How many kilowatt-hours does a pool pump use?: Roughly 1,728 kWh a year under these assumptions, or 1.20 kWh for every hour it runs.
Is that expensive compared with other states?: Washington has the 13th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $316 a year.