WattCost

Data through April 2026

Cost to run · Oklahoma · 13.3¢/kWh residential average

How much does it cost to run a dishwasher in Oklahoma?

$32/yr · median certified model

Residential electricity in Oklahoma runs 13.3¢/kWh — 29% under the U.S. average — putting the median certified dishwasher at about $32 a year, versus $45 nationally.

That makes Oklahoma the #5 cheapest of the 51 U.S. jurisdictions for running a dishwasher. Model choice matters as much as geography: at Oklahoma rates the most efficient certified model (Loch L1126) costs $11 a year while the most power-hungry (Amana ADFS2524R) costs $32 — a spread of $21 every year. For reference, the national extremes are North Dakota (12.3¢/kWh) and Hawaii (46.6¢/kWh); the same median dishwasher would cost $30 and $111 a year there.

Oklahoma
$32
US average
$45
North Dakota
$30
Hawaii
$111
Median certified dishwasher (239 kWh/yr) per year, at each rate

The cheapest dishwashers to run at Oklahoma rates

Price any model at Oklahoma rates

Your rate, your numbers

Per day
Per month
$2.65
Per year
$32

239 kWh/yr × 13.3¢/kWh = $32/yr

Prefilled with the median certified dishwasher (239 kWh/yr). Every model page on this site carries its exact certified figure.

Questions, answered with the data

How much does it cost to run a dishwasher in Oklahoma?
About $32 a year for the median ENERGY STAR certified dishwasher, at Oklahoma's average residential rate of 13.3¢/kWh — that's $2.65 a month.
Is electricity expensive in Oklahoma?
Oklahoma's residential average of 13.3¢/kWh is 29% below the U.S. average of 18.8¢/kWh, ranking 5 of 51 jurisdictions (1 = cheapest).
What's the cheapest dishwasher to run in Oklahoma?
Among currently certified models, the Loch L1126 costs the least at about $11 a year at Oklahoma rates (80 kWh/yr).
How does Oklahoma compare with other states?
The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Oklahoma sits at $32.

Keep digging

Rate source: US EIA, average residential price of electricity, see methodology.