How much does a well pump cost per month in Delaware?

About $8.43 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 18.48¢/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?

Delaware has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $100 a year.

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Cost to run a well pump in Delaware (July 2026 rates)

At 18.48¢ per kilowatt-hour — Delaware's average residential price in July 2026 — running a well pump costs $101 a year. That is about the same as the national average. Delaware's residential rate is up 11.5% from July 2025, which moves this appliance from $90.78 to $101 a year.

Per hour: 18.5¢
Per day of use: 27.7¢
Per month: $8.43
Per year: $101

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 Delaware compares

Delaware pays 18.48¢/kWh, the 19th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to 93.1¢ more 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
Minnesota	17.45¢	$7.96	$95.54
Virginia	17.55¢	$8.01	$96.09
Delaware	18.48¢	$8.43	$101
Wisconsin	19.06¢	$8.70	$104
Illinois	19.22¢	$8.77	$105

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

What else costs about the same in Delaware

Dehumidifier$99.79 a year in DE Gaming pc$108 a year in DE Aquarium$109 a year in DE

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 Delaware?: About $8.43 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 18.48¢/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?: Delaware has the 19th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $100 a year.