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

12.5¢
per hour running
12.5¢
per day
$3.79
per month
$45.55
per year

Uses about 0.8 kWh/day at 15.6¢/kWh (Texas). National average would be $4.11/month.

Sump Pump cost by state

StateRatePer hourPer month
Alabama15.6¢/kWh12.5¢$3.79
Alaska24.9¢/kWh19.9¢$6.06
Arizona15.2¢/kWh12.2¢$3.70
Arkansas12.7¢/kWh10.2¢$3.09
California31.8¢/kWh25.4¢$7.73
Colorado15.3¢/kWh12.2¢$3.72
Connecticut32.3¢/kWh25.8¢$7.86
Delaware16.8¢/kWh13.4¢$4.09
District of Columbia17.6¢/kWh14.1¢$4.28
Florida15.1¢/kWh12.1¢$3.67
Georgia14.2¢/kWh11.4¢$3.45
Hawaii42.1¢/kWh33.7¢$10.24
Idaho11.6¢/kWh9.3¢$2.82
Illinois16.4¢/kWh13.1¢$3.99
Indiana15.7¢/kWh12.6¢$3.82
Iowa13.7¢/kWh11.0¢$3.33
Kansas14.3¢/kWh11.4¢$3.48
Kentucky13.1¢/kWh10.5¢$3.19
Louisiana12.1¢/kWh9.7¢$2.94
Maine25.6¢/kWh20.5¢$6.23
Maryland18.1¢/kWh14.5¢$4.40
Massachusetts31.2¢/kWh25.0¢$7.59
Michigan19.4¢/kWh15.5¢$4.72
Minnesota15.1¢/kWh12.1¢$3.67
Mississippi13.6¢/kWh10.9¢$3.31
Missouri12.6¢/kWh10.1¢$3.06
Montana12.8¢/kWh10.2¢$3.11
Nebraska12.1¢/kWh9.7¢$2.94
Nevada15.4¢/kWh12.3¢$3.75
New Hampshire25.2¢/kWh20.2¢$6.13
New Jersey19.6¢/kWh15.7¢$4.77
New Mexico14.6¢/kWh11.7¢$3.55
New York24.6¢/kWh19.7¢$5.98
North Carolina14.1¢/kWh11.3¢$3.43
North Dakota11.2¢/kWh9.0¢$2.72
Ohio16.3¢/kWh13.0¢$3.96
Oklahoma12.2¢/kWh9.8¢$2.97
Oregon14.8¢/kWh11.8¢$3.60
Pennsylvania18.4¢/kWh14.7¢$4.47
Rhode Island30.4¢/kWh24.3¢$7.39
South Carolina14.7¢/kWh11.8¢$3.58
South Dakota12.6¢/kWh10.1¢$3.06
Tennessee13.2¢/kWh10.6¢$3.21
Texas15.6¢/kWh12.5¢$3.79
Utah11.7¢/kWh9.4¢$2.85
Vermont21.6¢/kWh17.3¢$5.25
Virginia14.6¢/kWh11.7¢$3.55
Washington12.3¢/kWh9.8¢$2.99
West Virginia14.8¢/kWh11.8¢$3.60
Wisconsin17.2¢/kWh13.8¢$4.18
Wyoming11.8¢/kWh9.4¢$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.

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