Electricity in Will County, Illinois
2 electric utilities serve homes in Will County, Illinois: ComEd and City of Naperville. In 2025, the average home bill of these utilities was $107.32 (ComEd) to $112.32 (City of Naperville) a month. This page covers 8 cities with 25,000 or more people in the county, from Naperville to Lockport.
- 8 cities
- 2 utilities
- EIA and Census data, 2025
Electric utilities in Will County
EIA lists utilities by county, not by address. Your address has one utility: its name is on your bill, or type your ZIP code in the utility finder.
| Utility | Homes in Illinois | Average bill 2025 | 1,000 kWh now |
|---|---|---|---|
| ComEdInvestor-owned utility · bill calculator | 3,753,924 | $107.32606 kWh, 17.7¢ | — |
| City of NapervilleCity utility | 57,225 | $112.32769 kWh, 14.6¢ | — |
The average bill is the 2025 average of each utility's homes that bought their power from it (EIA-861). The Illinois average was $126.59 a month.
Cities in Will County
| City | People | City-owned utility | Solar kWh a year per kW |
|---|---|---|---|
| Naperville | 153,114 | City of Naperville | 1,333 |
| Joliet | 152,241 | — | 1,344 |
| Bolingbrook | 74,803 | — | 1,345 |
| Tinley Park | 55,140 | — | 1,332 |
| Plainfield | 50,043 | — | 1,336 |
| Romeoville | 41,281 | — | 1,334 |
| New Lenox | 28,893 | — | 1,331 |
| Lockport | 27,822 | — | 1,314 |
A city-owned utility is a municipal utility in the county with the city's name (EIA data). Solar output: PVWatts version 8 for a south-facing roof; see the solar savings calculator.
More about Illinois: Illinois electric rates, all Illinois utilities, home energy rebates and natural gas bills.
Who provides electricity in Will County?
2 electric utilities serve homes in Will County, Illinois: ComEd and City of Naperville. The name of your utility is on your bill.
Which cities in Will County are on this page?
Naperville, Joliet, Bolingbrook, Tinley Park, Plainfield, Romeoville, New Lenox and Lockport.
Sources: EIA-861 data, 2025 (utilities by county, homes and average bills); Census Bureau city population estimates, Vintage 2025; PVWatts (National Laboratory of the Rockies).