How much does a sump pump cost to run?
Updated August 2026 · average residential rates
Quick answer: a sump pump (600–1,000 W while running) costs about 13.5¢ per hour to run at the US average rate. With 1 hour of run-time/day in wet season, that's 13.5¢/day, $4.11/month and $49.35/year — using ~0.8 kWh a day. Your state's rate can move this from $2.72 to $10.24 monthly.
Run your own numbers
600–1,000 W while running · default assumes 1 hour of run-time/day in wet season
Uses about 0.8 kWh/day at 15.6¢/kWh (Texas). National average would be $4.11/month.
Sump Pump cost by state
| State | Rate | Per hour | Per month |
|---|---|---|---|
| Alabama | 15.6¢/kWh | 12.5¢ | $3.79 |
| Alaska | 24.9¢/kWh | 19.9¢ | $6.06 |
| Arizona | 15.2¢/kWh | 12.2¢ | $3.70 |
| Arkansas | 12.7¢/kWh | 10.2¢ | $3.09 |
| California | 31.8¢/kWh | 25.4¢ | $7.73 |
| Colorado | 15.3¢/kWh | 12.2¢ | $3.72 |
| Connecticut | 32.3¢/kWh | 25.8¢ | $7.86 |
| Delaware | 16.8¢/kWh | 13.4¢ | $4.09 |
| District of Columbia | 17.6¢/kWh | 14.1¢ | $4.28 |
| Florida | 15.1¢/kWh | 12.1¢ | $3.67 |
| Georgia | 14.2¢/kWh | 11.4¢ | $3.45 |
| Hawaii | 42.1¢/kWh | 33.7¢ | $10.24 |
| Idaho | 11.6¢/kWh | 9.3¢ | $2.82 |
| Illinois | 16.4¢/kWh | 13.1¢ | $3.99 |
| Indiana | 15.7¢/kWh | 12.6¢ | $3.82 |
| Iowa | 13.7¢/kWh | 11.0¢ | $3.33 |
| Kansas | 14.3¢/kWh | 11.4¢ | $3.48 |
| Kentucky | 13.1¢/kWh | 10.5¢ | $3.19 |
| Louisiana | 12.1¢/kWh | 9.7¢ | $2.94 |
| Maine | 25.6¢/kWh | 20.5¢ | $6.23 |
| Maryland | 18.1¢/kWh | 14.5¢ | $4.40 |
| Massachusetts | 31.2¢/kWh | 25.0¢ | $7.59 |
| Michigan | 19.4¢/kWh | 15.5¢ | $4.72 |
| Minnesota | 15.1¢/kWh | 12.1¢ | $3.67 |
| Mississippi | 13.6¢/kWh | 10.9¢ | $3.31 |
| Missouri | 12.6¢/kWh | 10.1¢ | $3.06 |
| Montana | 12.8¢/kWh | 10.2¢ | $3.11 |
| Nebraska | 12.1¢/kWh | 9.7¢ | $2.94 |
| Nevada | 15.4¢/kWh | 12.3¢ | $3.75 |
| New Hampshire | 25.2¢/kWh | 20.2¢ | $6.13 |
| New Jersey | 19.6¢/kWh | 15.7¢ | $4.77 |
| New Mexico | 14.6¢/kWh | 11.7¢ | $3.55 |
| New York | 24.6¢/kWh | 19.7¢ | $5.98 |
| North Carolina | 14.1¢/kWh | 11.3¢ | $3.43 |
| North Dakota | 11.2¢/kWh | 9.0¢ | $2.72 |
| Ohio | 16.3¢/kWh | 13.0¢ | $3.96 |
| Oklahoma | 12.2¢/kWh | 9.8¢ | $2.97 |
| Oregon | 14.8¢/kWh | 11.8¢ | $3.60 |
| Pennsylvania | 18.4¢/kWh | 14.7¢ | $4.47 |
| Rhode Island | 30.4¢/kWh | 24.3¢ | $7.39 |
| South Carolina | 14.7¢/kWh | 11.8¢ | $3.58 |
| South Dakota | 12.6¢/kWh | 10.1¢ | $3.06 |
| Tennessee | 13.2¢/kWh | 10.6¢ | $3.21 |
| Texas | 15.6¢/kWh | 12.5¢ | $3.79 |
| Utah | 11.7¢/kWh | 9.4¢ | $2.85 |
| Vermont | 21.6¢/kWh | 17.3¢ | $5.25 |
| Virginia | 14.6¢/kWh | 11.7¢ | $3.55 |
| Washington | 12.3¢/kWh | 9.8¢ | $2.99 |
| West Virginia | 14.8¢/kWh | 11.8¢ | $3.60 |
| Wisconsin | 17.2¢/kWh | 13.8¢ | $4.18 |
| Wyoming | 11.8¢/kWh | 9.4¢ | $2.87 |
FAQ
How much electricity does a sump pump use?+
A typical sump pump draws 600–1,000 W while running. At 1 hour of run-time/day in wet season, that's about 0.8 kWh per day.
How much does a sump pump cost to run per month?+
About $4.11 per month at the US average residential rate of 16.9¢/kWh — ranging from roughly $2.72 in North Dakota to $10.24 in Hawaii.
Is it expensive to leave a sump pump on?+
Running it costs about 13.5¢ per hour at average rates. Multiply by your actual hours — and check your state's rate above, since electricity prices vary almost 4× across the US.