Cost to Run a Space Heater in Illinois
Illinois's average residential electricity rate is 19.2¢/kWh as of July 2026 — the 35th cheapest in the country, 5% above the U.S. average. At typical usage (8 hours/day), a space heater here costs $70.04 per month.
Per hour
$0.29
at 750–1,500 W
Per day
$2.30
8 hours/day
Per month
$70.04
365 kWh
Per year
$841
4,380 kWh
By usage level in Illinois
| Usage | Per day | Per month | Per year |
|---|---|---|---|
| Light (4 hrs/day) | $1.15 | $35.02 | $420 |
| Typical (8 hrs/day) | $2.30 | $70.04 | $841 |
| Heavy (16 hrs/day) | $4.61 | $140 | $1,682 |
Illinois vs. the rest of the country
Monthly cost at typical usage.
Frequently asked questions
How much does it cost to run a space heater in Illinois?
At Illinois's current average residential rate of 19.2¢/kWh (July 2026), a space heater with typical usage costs about $2.30 per day, $70.04 per month, or $841 per year.
Is running a space heater in Illinois more expensive than average?
Yes. Illinois's electricity costs about 5% more than the U.S. average, so the same usage costs $70.04 per month here versus $66.76 nationally.
What does electricity cost in Illinois right now?
Illinois residents pay an average of 19.2¢ per kWh as of July 2026 — the 35th cheapest rate of the 51 U.S. jurisdictions we track.