How much does a well pump cost per month in District of Columbia?

About $11.50 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 25.21¢/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?

District of Columbia has the 9th 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 District of Columbia (July 2026 rates)

At 25.21¢ per kilowatt-hour — District of Columbia's average residential price in July 2026 — running a well pump costs $138 a year. That is 38% more than the national average of $100. District of Columbia's residential rate is up 9.4% from July 2025, which moves this appliance from $126 to $138 a year.

Per hour: 25.2¢
Per day of use: 37.8¢
Per month: $11.50
Per year: $138

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 District of Columbia compares

District of Columbia pays 25.21¢/kWh, the 9th most expensive residential electricity of the 51 U.S. jurisdictions EIA reports. For this appliance that works out to $37.78 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
Connecticut	24.16¢	$11.02	$132
New Jersey	25.19¢	$11.49	$138
District of Columbia	25.21¢	$11.50	$138
New Hampshire	26.60¢	$12.14	$146
Rhode Island	28.29¢	$12.91	$155

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

What else costs about the same in District of Columbia

Dehumidifier$136 a year in DC Gaming pc$147 a year in DC Aquarium$149 a year in DC

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 District of Columbia?: About $11.50 a month, assuming 1,000 W, 1.5 hours a day, 365 days a year at 25.21¢/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?: District of Columbia has the 9th most expensive average residential rate in the country, so this appliance costs more here than the U.S. average of $100 a year.