Sump pump: electricity cost calculator
Quick answer: a typical sump pump costs about $4/month while in use at the U.S. average electricity price (18.44¢/kWh) — about $54 per year. Your number depends on wattage, runtime and your state — calculate it below.
A ⅓–1 HP sump pump draws 400–1,500 W while pumping. In dry weather it may run minutes per day; during heavy rain or snowmelt it can cycle for hours.
0.80 kWh/day used · 24 kWh/month in use · 292 kWh/year at 18.44¢ per kWh
Low, typical and heavy use
Monthly cost while in use, at the U.S. average price of 18.44¢/kWh.
| Scenario | Watts | Hours/day | Per month |
|---|---|---|---|
| Light use | 400 W | 0.6 h | $1.35 |
| Typical | 800 W | 1.0 h | $4.49 |
| Heavy use | 1,500 W | 1.5 h | $12.63 |
Common questions
How much does a sump pump cost during a wet month?
Running 4 hours a day at 800 W costs roughly $18 per month at the U.S. average price — still far cheaper than a flooded basement.
Cost in every state
Monthly cost of a typical sump pump (800 W, 1h/day) at each state's average residential price, May 2026.
| State | Avg price | Per month |
|---|---|---|
| Alabama | 16.77¢ | $4.08 |
| Alaska | 28.23¢ | $6.87 |
| Arizona | 15.23¢ | $3.71 |
| Arkansas | 14.36¢ | $3.50 |
| California | 33.25¢ | $8.10 |
| Colorado | 16.16¢ | $3.93 |
| Connecticut | 27.37¢ | $6.66 |
| Delaware | 19.38¢ | $4.72 |
| District of Columbia | 25.40¢ | $6.18 |
| Florida | 15.17¢ | $3.69 |
| Georgia | 15.84¢ | $3.86 |
| Hawaii | 52.00¢ | $12.66 |
| Idaho | 12.35¢ | $3.01 |
| Illinois | 23.85¢ | $5.81 |
| Indiana | 18.15¢ | $4.42 |
| Iowa | 14.14¢ | $3.44 |
| Kansas | 15.13¢ | $3.68 |
| Kentucky | 14.98¢ | $3.65 |
| Louisiana | 14.15¢ | $3.45 |
| Maine | 28.63¢ | $6.97 |
| Maryland | 21.77¢ | $5.30 |
| Massachusetts | 28.82¢ | $7.02 |
| Michigan | 22.01¢ | $5.36 |
| Minnesota | 16.95¢ | $4.13 |
| Mississippi | 16.16¢ | $3.93 |
| Missouri | 13.68¢ | $3.33 |
| Montana | 14.67¢ | $3.57 |
| Nebraska | 13.59¢ | $3.31 |
| Nevada | 13.60¢ | $3.31 |
| New Hampshire | 27.33¢ | $6.65 |
| New Jersey | 23.27¢ | $5.67 |
| New Mexico | 14.12¢ | $3.44 |
| New York | 29.93¢ | $7.29 |
| North Carolina | 15.09¢ | $3.67 |
| North Dakota | 13.61¢ | $3.31 |
| Ohio | 19.52¢ | $4.75 |
| Oklahoma | 13.38¢ | $3.26 |
| Oregon | 16.27¢ | $3.96 |
| Pennsylvania | 21.55¢ | $5.25 |
| Rhode Island | 29.46¢ | $7.17 |
| South Carolina | 16.18¢ | $3.94 |
| South Dakota | 15.73¢ | $3.83 |
| Tennessee | 14.47¢ | $3.52 |
| Texas | 16.44¢ | $4.00 |
| Utah | 12.96¢ | $3.16 |
| Vermont | 24.89¢ | $6.06 |
| Virginia | 17.61¢ | $4.29 |
| Washington | 14.95¢ | $3.64 |
| West Virginia | 16.80¢ | $4.09 |
| Wisconsin | 19.74¢ | $4.81 |
| Wyoming | 14.80¢ | $3.60 |
Related calculators
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Heat pump water heater Same hot water for about a third of the electricity.
~550 W · 4h/day →
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~18,000 W · 1h/day →
Washing machine Cold washes make it one of the cheapest appliances.
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Electric clothes dryer Around 3 kWh per load for a standard electric dryer.
~3,000 W · 1h/day →
Heat pump dryer Slower cycles, less than half the energy per load.
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Methodology & sources
Cost = watts ÷ 1,000 × hours × price per kWh. Electricity prices are average residential prices by state from the EIA Electric Power Monthly, Table 5.6.A (May 2026). EIA averages include delivery charges and taxes but are not any specific utility tariff — for an exact figure, use the rate from your own bill. Wattage presets reflect common product ranges; check your appliance's nameplate or a plug-in power meter for its true draw.
Last verified: July 30, 2026. Prices refresh automatically each month when EIA publishes new data.