Electricity in DeKalb, Illinois
ComEd is the only electric utility that EIA lists in DeKalb County, where DeKalb is, so it serves DeKalb. The average ComEd home paid $107.32 a month in 2025 (17.7¢ per kWh). The Illinois average was $126.59.
- 40,467 people (2025 estimate)
- DeKalb County
- EIA data, 2025
Electric utilities in DeKalb
| Utility | Homes in Illinois | Average bill 2025 | 1,000 kWh now |
|---|---|---|---|
| ComEdInvestor-owned utility · bill calculator | 3,753,924 | $107.32606 kWh, 17.7¢ | — |
The average bill is the 2025 average of each utility's homes that bought their power from it (EIA-861); a dash means that its homes buy power from a retail supplier. The 1,000 kWh bill is from the official tariff, before taxes, for the utilities that have a calculator on this site. The Illinois average was $126.59 a month for 716 kWh (17.7¢ per kWh).
Solar power in DeKalb
A home solar system on a south-facing roof in DeKalb makes about 1,346 kWh a year for each kW of panels (PVWatts, National Laboratory of the Rockies). A 6 kW system makes about 8,075 kWh a year. See what that saves on your utility's rates with the solar savings calculator.
Lower your electric bill in DeKalb
- Open your utility above for its average bill, outages and rates, or the bill calculator to check your own bill.
- Help paying the electric bill in Illinois: bill assistance, payment plans and discounts.
- Why is my electric bill so high? and the appliance cost calculator.
More about Illinois: Illinois electric rates and all Illinois utilities, business electricity rates and natural gas bills. Other cities: Chicago, Aurora, Batavia, Belvidere, Bloomington, Champaign, Cicero, Crystal Lake, Danville, Decatur, Elgin, Galesburg.
Who provides electricity in DeKalb, IL?
ComEd is the only electric utility that EIA lists in DeKalb County, where DeKalb is, so it serves DeKalb.
What is the average electric bill in DeKalb, IL?
The average ComEd home paid $107.32 a month in 2025 (17.7¢ per kWh). The Illinois average was $126.59 a month for 716 kWh. Your bill depends on your kWh and your rate plan.
utilityratecalc.com is not part of any utility or city government. Sources: Census Bureau city population estimates, Vintage 2025 (the city and its counties); EIA-861 data, 2025 (utilities by county, homes and average bills).