WattCost

Data through April 2026

Cost to run · Illinois · 20.5¢/kWh residential average

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

$49/yr · median certified model

Illinois's residential rate of 20.5¢/kWh tracks the national average (18.8¢) closely, so national cost figures translate almost directly: a median certified dishwasher runs about $49 a year here.

Illinois ranks 36 of 51 jurisdictions for dishwasher running costs — solidly mid-table. At local rates, certified models span $16 (Loch L1126) to $49 (Amana ADFS2524R) per year — $33 of annual headroom that depends entirely on which unit you buy. 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.

Illinois
$49
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 Illinois rates

Price any model at Illinois rates

Your rate, your numbers

Per day
13¢
Per month
$4.08
Per year
$49

239 kWh/yr × 20.5¢/kWh = $49/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 Illinois?
About $49 a year for the median ENERGY STAR certified dishwasher, at Illinois's average residential rate of 20.5¢/kWh — that's $4.08 a month.
Is electricity expensive in Illinois?
Illinois's residential average of 20.5¢/kWh is 9% above the U.S. average of 18.8¢/kWh, ranking 36 of 51 jurisdictions (1 = cheapest).
What's the cheapest dishwasher to run in Illinois?
Among currently certified models, the Loch L1126 costs the least at about $16 a year at Illinois rates (80 kWh/yr).
How does Illinois compare with other states?
The same median dishwasher costs $30 a year in North Dakota (the cheapest state) and $111 in Hawaii (the priciest). Illinois sits at $49.

Keep digging

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