How much does it cost to run a sump pump?
A 800-watt sump pump costs about $0.15 an hour in the U.S. on average, or about $4.37 a month at 1 hour a day.
Your cost
Cost by wattage
| Wattage | Hour | Day | Month | Year |
|---|---|---|---|---|
| Low (400 W) | 7¢ | 7¢ | $2.18 | $26.56 |
| Typical (800 W) | $0.15 | $0.15 | $4.37 | $53.11 |
| High (1,100 W) | $0.20 | $0.20 | $6.00 | $73.03 |
Day, month and year assume 1 hour of use a day.
Other home costs
| Appliance | Typical | Per month |
|---|---|---|
| Hot tub | 250 W | $32.74 |
| Dehumidifier | 500 W | $32.74 |
| Humidifier | 100 W | $5.46 |
Ways to spend less
- Run humidity and water equipment only as much as the room needs; a humidistat or timer helps.
- Keep covers and lids on (hot tubs especially) to cut heat loss.
Monthly cost in every state
| State | Rate | Per month |
|---|---|---|
| North Dakota | 12.36¢ | $2.97 |
| Nebraska | 12.90¢ | $3.10 |
| Idaho | 12.96¢ | $3.11 |
| Utah | 13.16¢ | $3.16 |
| Louisiana | 13.35¢ | $3.20 |
| Nevada | 13.53¢ | $3.25 |
| Oklahoma | 13.58¢ | $3.26 |
| Arkansas | 13.61¢ | $3.27 |
| Tennessee | 13.87¢ | $3.33 |
| Montana | 13.95¢ | $3.35 |
| Wyoming | 13.95¢ | $3.35 |
| Missouri | 13.96¢ | $3.35 |
| Iowa | 14.20¢ | $3.41 |
| Kentucky | 14.27¢ | $3.42 |
| Washington | 14.40¢ | $3.46 |
| South Dakota | 14.50¢ | $3.48 |
| North Carolina | 14.94¢ | $3.59 |
| New Mexico | 15.08¢ | $3.62 |
| Mississippi | 15.19¢ | $3.65 |
| Kansas | 15.21¢ | $3.65 |
| Florida | 15.30¢ | $3.67 |
| Georgia | 15.40¢ | $3.70 |
| Oregon | 15.40¢ | $3.70 |
| Arizona | 15.44¢ | $3.71 |
| West Virginia | 15.47¢ | $3.71 |
| South Carolina | 15.93¢ | $3.82 |
| Texas | 16.06¢ | $3.85 |
| Minnesota | 16.25¢ | $3.90 |
| Alabama | 16.54¢ | $3.97 |
| Colorado | 16.72¢ | $4.01 |
| Virginia | 16.83¢ | $4.04 |
| Indiana | 17.04¢ | $4.09 |
| Delaware | 17.86¢ | $4.29 |
| Ohio | 18.70¢ | $4.49 |
| Wisconsin | 19.00¢ | $4.56 |
| Illinois | 19.22¢ | $4.61 |
| Pennsylvania | 21.04¢ | $5.05 |
| Maryland | 21.30¢ | $5.11 |
| Michigan | 21.53¢ | $5.17 |
| Vermont | 23.95¢ | $5.75 |
| New Jersey | 23.98¢ | $5.76 |
| District of Columbia | 24.66¢ | $5.92 |
| New Hampshire | 26.79¢ | $6.43 |
| Alaska | 27.09¢ | $6.50 |
| Connecticut | 27.97¢ | $6.71 |
| Rhode Island | 29.22¢ | $7.01 |
| New York | 29.38¢ | $7.05 |
| Maine | 29.99¢ | $7.20 |
| Massachusetts | 30.14¢ | $7.23 |
| California | 33.25¢ | $7.98 |
| Hawaii | 46.28¢ | $11.11 |
At 800 watts for 1 hour a day, 30 days a month. Rates are average residential prices from the U.S. Energy Information Administration, January–July 2026 (EIA Electric Power Monthly). Your bill's rate may differ, so enter your own in the calculator.