Find Your Illinois Electric company
Illinois electricity splits in two: ComEd owns the wires across Chicago and northern Illinois, by far the most common answer at addresses we've checked, while Ameren Illinois serves the rest of the state. Gas depends on where you stand: Peoples Gas inside Chicago, Nicor in most suburbs, Ameren downstate. Chicago runs its own water; many other communities are served by Illinois American Water.
- Illinois wires Village of Winnetka Leads sampled checks near Chicago, Cicero, Rockford, Waukegan.
- Also common COMED COMED covers other Illinois pockets in the sample.
- Illinois next step Run the street Use the Illinois lookup when ZIP-level guesses disagree.
Free lookup · electric, gas, water & sewer for any Illinois address
20,000+ addresses checked · 555 ZIP codes · updated Jul 2026
Illinois electric coverage draws on 20,000+ in-state address checks inside a 684,000+ national sample. How we verify.
Illinois electricity coverage
In our Illinois electric sample, Village of Winnetka (with COMED elsewhere) is the name that shows up most around Chicago, Cicero, Rockford, Waukegan. Map first, address second.
Treat this Illinois map as orientation only, never as a bill guarantee.
Check my Illinois address
Illinois electric colors are sampled leaders, not surveyed boundaries. Confirm the street.
Who shows up for Illinois electricity
Illinois ranking uses 20,000+ in-state checks. A sampled leader is not a promise for every Illinois street.
| Provider | Most common in |
|---|---|
| Village of Winnetka | Chicago, Cicero |
| COMED | Rockford, Waukegan |
| City of Naperville | Naperville |
| City of Springfield | Springfield |
| Ameren Illinois | Peoria |
| Eastern Illinois Elec Coop | Champaign |
| Corn Belt Energy Corporation | Bloomington |
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ComEd north, Ameren south, and three gas companies
ComEd (Commonwealth Edison) delivers electricity to Chicago and most of northern Illinois, and Ameren Illinois covers central and southern Illinois. Illinois has retail supply choice, but the delivery utility that owns your wires and fixes your outages is fixed by address.
Gas is the map most people get wrong: Peoples Gas serves the city of Chicago itself, Nicor Gas serves most of the collar suburbs, and Ameren handles downstate. Water splits between big municipal systems, the City of Chicago's water department serves the city and dozens of suburbs, and Illinois American Water territories.
Illinois electricity questions, answered
Is Chicago's electric company ComEd?
Yes. ComEd leads at thousands of Chicago addresses we've checked. Retail supply choice exists in Illinois, but ComEd remains the delivery utility either way.
Who is my electric company in Illinois?
Village of Winnetka is among the most common answers in our Illinois sampling, but territory lines decide. Enter your address in the lookup to see the utility that serves your home, and whether you also choose a retail plan.
Can I choose my electricity provider in Illinois?
In much of Illinois, yes for the retail plan. The delivery utility that owns the wires stays fixed by address; you shop for the plan on top. Municipal and co-op areas are usually single-provider.
Name the electric company for your Illinois block
Type the street. We return your electric company for that block, plus the rest of the utility lineup where available.
Free lookup · electric, gas, water & sewer for any Illinois address
Electricity territories on this page come from our address-level mapping database for Illinois (geographically spread sample addresses), not from inventing a statewide monopoly. Page published 2026-08-03; underlying sample refreshed 2026-07-22. Always confirm yours with the lookup. Read how we verify provider data.