How much does a well pump cost per month in South Carolina?

About $7.09 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 15.55¢/kWh.

How many kilowatt-hours does a well pump use?

Roughly 548 kWh a year under these assumptions, or 1.00 kWh for every hour it runs.

Is that expensive compared with other states?

South Carolina has the 21st cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $100 a year.

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Cost to run a well pump in South Carolina (June 2026 rates)

At 15.55¢ per kilowatt-hour — South Carolina's average residential price in June 2026 — running a well pump costs $85.14 a year. That is 15% less than the national average of $100. South Carolina's residential rate is up 5.1% from June 2025, which moves this appliance from $80.98 to $85.14 a year.

Per hour: 15.6¢
Per day of use: 23.3¢
Per month: $7.09
Per year: $85.14

Assumption: 1,000 W, 1.5 hours a day, 365 days a year — 548 kWh a year. A 1/2 to 3/4 HP submersible pump running about 90 minutes a day for an average household's water use. Use the calculator to swap in the numbers from your own model.

How South Carolina compares

South Carolina pays 15.55¢/kWh, the 21st cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $15.28 less a year than the typical U.S. household pays for the same use. Running the same well pump costs $71.78 a year in Nevada and $289 in Hawaii, so where you live changes this bill by $217 a year.

State	Rate	Per month	Per year
South Dakota	15.36¢	$7.01	$84.10
West Virginia	15.45¢	$7.05	$84.59
South Carolina	15.55¢	$7.09	$85.14
Kansas	15.71¢	$7.17	$86.01
Iowa	15.93¢	$7.27	$87.22

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

What else costs about the same in South Carolina

Dehumidifier$83.97 a year in SC Gaming pc$90.81 a year in SC Aquarium$91.95 a year in SC

Cutting the number down

A waterlogged pressure tank makes the pump short-cycle, which is hard on the motor and shows up on the bill.
A running toilet or dripping outdoor spigot runs the pump all night; leaks are the usual explanation for a sudden jump.

Questions

How much does a well pump cost per month in South Carolina?: About $7.09 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 15.55¢/kWh.
How many kilowatt-hours does a well pump use?: Roughly 548 kWh a year under these assumptions, or 1.00 kWh for every hour it runs.
Is that expensive compared with other states?: South Carolina has the 21st cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $100 a year.