WattCost

Data through June 2026

Cost to run · Illinois · 19.9¢/kWh residential average

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

$67/yr · median certified model

Illinois's residential rate of 19.9¢/kWh tracks the national average (18.3¢) closely, so national cost figures translate almost directly: a median certified dehumidifier runs about $67 a year here.

Illinois ranks 36 of 51 jurisdictions for dehumidifier running costs — solidly mid-table. At local rates, certified models span $21 (CONCETTA AS-CSJ72XK-2WT-OL) to $559 (Healthy Climate HCWHD#-130) per year — $538 of annual headroom that depends entirely on which unit you buy. For reference, the national extremes are Nevada (13.1¢/kWh) and Hawaii (52.7¢/kWh); the same median dehumidifier would cost $44 and $178 a year there.

Illinois
$67
US average
$62
Nevada
$44
Hawaii
$178
Median certified dehumidifier (338 kWh/yr) per year, at each rate

The cheapest dehumidifiers to run at Illinois rates

Top 10 by certified kWh, priced at 19.9¢/kWh
#ModelkWh/yr$/yr in IL
1CONCETTA AS-CSJ72XK-2WT-OLmost efficient105$21
2Dr. Prepare DDH12LAmost efficient105$21
3DUMOS AS-CSJ72XK-2WT-OLmost efficient105$21
4edx AS-CSJ72XK-2WT-OLmost efficient105$21
5Gianna AS-CSJ72XK-2WT-OLmost efficient105$21
6IULULU AS-CSJ72XK-2WT-OLmost efficient105$21
7JIOABL AS-CSJ72XK-2WT-OLmost efficient105$21
8KMFurnila AS-CSJ72XK-2WT-OLmost efficient105$21
9NEWBULIG AS-CSJ72XK-2WT-OLmost efficient105$21
10OLIXIS AS-CSJ72XK-2WT-OLmost efficient105$21

Price any model at Illinois rates

Your rate, your numbers

Per day
18¢
Per month
$5.60
Per year
$67

338 kWh/yr × 19.9¢/kWh = $67/yr

Prefilled with the median certified dehumidifier (338 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 dehumidifier in Illinois?
About $67 a year for the median ENERGY STAR certified dehumidifier, at Illinois's average residential rate of 19.9¢/kWh — that's $5.60 a month.
Is electricity expensive in Illinois?
Illinois's residential average of 19.9¢/kWh is 8% above the U.S. average of 18.3¢/kWh, ranking 36 of 51 jurisdictions (1 = cheapest).
What's the cheapest dehumidifier to run in Illinois?
Among currently certified models, the CONCETTA AS-CSJ72XK-2WT-OL costs the least at about $21 a year at Illinois rates (105 kWh/yr).
How does Illinois compare with other states?
The same median dehumidifier costs $44 a year in Nevada (the cheapest state) and $178 in Hawaii (the priciest). Illinois sits at $67.

Keep digging

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