Call before you drive
Illinois utility phone lines
For emergencies and most billing questions, the phone is faster than the counter.
Peoples Gas / Nicor gas · 24/7
1-866-556-6004Peoples Gas (Chicago): 1-866-556-6004. Nicor Gas: 1-888-642-6748.
Office finder
Find your nearest walk-in office
Filter by utility, search by ZIP or town.
Browning
ZIP 61412
West-central IL
Also serves: Browning, Beardstown, Astoria.
Tuscola
ZIP 61953
East-central IL
Also serves: Tuscola, Arthur, Atwood.
Crystal Lake
ZIP 60012
Northwest suburbs (Chicago)
Also serves: Crystal Lake, Lake in the Hills, Cary.
Chicago
ZIP 60618
North Side · Chicago
Also serves: North Center, Lakeview, Avondale, Irving Park.
Elizabeth
ZIP 61254
Northwest IL (Jo Daviess + Carroll counties)
Also serves: Galena, Hanover, Stockton, Mt Carroll.
Moline
ZIP 61265
Quad Cities region
Also serves: Moline, Rock Island, East Moline.
Before you go
What an IL utility office actually handles
In a deregulated state, the utility delivers and bills. The kWh themselves can come from an ARES or from your town's Community Choice Aggregation (CCA).
What you can do at the counter
- ✓Pay a bill in cash or with a check.
- ✓Set up a payment plan or budget billing.
- ✓Open or close an account with photo ID.
- ✓Apply for LIHEAP / CSBG low-income assistance.
- ✓Resolve a disconnection notice before the shut-off date.
What the office is not for
- ✗Reporting a power outage. Call ComEd 1-800-334-7661 or Ameren 1-800-755-5000.
- ✗Reporting a gas leak. Leave first, then call from outside: Peoples Gas 1-866-556-6004, Nicor Gas 1-888-642-6748, Ameren gas 1-800-755-5000.
- ✗Comparing ARES offers. Use our IL supplier directory or PlugInIllinois.org (ICC's official portal).
- ✗Scheduling a meter install or move. Field crews are dispatched by phone.
- ✗Walk-in service outside hours. Most offices keep weekday business hours only.
Quick answers
Before you make the trip, the most common questions about IL utility offices.
Usually no. Almost everything can be done by phone or online. ComEd: 1-800-334-7661. Ameren Illinois: 1-800-755-5000. MidAmerican: 1-888-427-5632. Walk-in offices are most useful for cash payments and LIHEAP paperwork.
Most IL utility offices keep weekday business hours, typically Monday to Friday from 8 a.m. or 9 a.m. to around 4 p.m. or 5 p.m. CT, closed on weekends and federal holidays.
Always your delivery utility, 24/7. ComEd: 1-800-334-7661. Ameren Illinois: 1-800-755-5000. MidAmerican: 1-888-427-5632. For rural co-op or municipal customers, call your local provider directly.
Yes. Illinois opened residential retail choice in 2002. ComEd, Ameren and MidAmerican customers can pick an ICC-licensed Alternative Retail Electric Supplier (ARES), stay on the utility's Price to Compare, or be enrolled in their town's Community Choice Aggregation (CCA) by default. Rural-coop and municipal-utility customers do not have retail choice.
A municipality bulk-buys electricity supply on behalf of its residents and enrolls them by default (opt-out). Authorized in IL since 2009. Many Chicago suburbs and downstate cities run CCA programs — check your town's website or your last bill for "Municipal Electric Aggregation" line. You can opt out at any time without fees.
The Illinois Commerce Commission (ICC) regulates ComEd, Ameren Illinois and MidAmerican delivery rates, licenses ARES suppliers and runs PlugInIllinois.org (the supplier-shopping portal). The Citizens Utility Board (CUB) is the state-recognized residential ratepayer advocate.
Keep exploring IL energy
More U.S. states with energy choice
Same playbook, different utility. Pick another deregulated state to compare utilities, suppliers and switching rules.
