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

About $7.01 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 15.37¢/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 Dakota has the 18th 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 Dakota (July 2026 rates)

At 15.37¢ per kilowatt-hour — South Dakota's average residential price in July 2026 — running a well pump costs $84.15 a year. That is 16% less than the national average of $100. South Dakota's residential rate is up 5.9% from July 2025, which moves this appliance from $79.50 to $84.15 a year.

Per hour: 15.4¢
Per day of use: 23.1¢
Per month: $7.01
Per year: $84.15

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 Dakota compares

South Dakota pays 15.37¢/kWh, the 18th cheapest residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $16.10 less a year than the typical U.S. household pays for the same use. Running the same well pump costs $69.64 a year in Louisiana and $263 in Hawaii, so where you live changes this bill by $193 a year.

State	Rate	Per month	Per year
North Carolina	15.16¢	$6.92	$83.00
Kansas	15.27¢	$6.97	$83.60
South Dakota	15.37¢	$7.01	$84.15
Arizona	15.38¢	$7.02	$84.21
South Carolina	15.47¢	$7.06	$84.70

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

What else costs about the same in South Dakota

Dehumidifier$83.00 a year in SD Gaming pc$89.76 a year in SD Aquarium$90.88 a year in SD

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 Dakota?: About $7.01 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 15.37¢/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 Dakota has the 18th cheapest average residential rate in the country, so this appliance costs less here than the U.S. average of $100 a year.