When's the Power Back?

Power outages in Illinois

Live outage status by county · updated ~every 15 minutes
175
customers reported out statewide · 15 counties reporting · 1 with 50+ customers out
Updated 4:56 PM CDT.
Significant outages (50+ customers, largest first)
Lake — 74 reported out · no reliable recovery trend yet
“Reporting” means at least one customer reported out in county-level data (the federal nationwide tally combined with utilities' own live data where we track them); “significant” means 50+ customers out — the floor for the active list above.

Historical outage patterns in Illinois

Federal outage records (EAGLE-I, kept by the U.S. Department of Energy) contain 29,219 county-level outage records (200+ customers at peak) in Illinois between 2014 and 2025 across all 102 counties — 175 of them major events of 10,000+ customers. Half were restored within about 2.8 hr, and county-level outages here have been most common in summer (31% of all records). The busiest year on record was 2019.
Largest single-county outage on record: ~279,858 customers out in Cook County in August 2020, restored after about 5.4 days.
Months that hit the widest area at once — these rank among the three largest outages ever recorded in the most counties: June 2023 (16 counties), August 2020 (16 counties) and July 2024 (14 counties).
Where restoration has historically taken longest: Cook County (~12.5 hr typical), DuPage County (~5 hr typical) and Marshall County (~4.3 hr typical) — against ~2.8 hr statewide.
Source: EAGLE-I (Oak Ridge National Laboratory / U.S. Department of Energy), 2014–2025. These are federal historical records, not outages tracked live by this site. Statewide figures aggregate the same per-county records shown on each county page below; the statewide restoration figure is the typical (middle) value across the per-county typical times, weighted by how many records each county has. A county appears in a “widest area” month when that month produced one of its three largest recorded outages.
Illinois — live power outage tracker

Common questions

Which utilities serve Illinois?

Electric utilities we track in Illinois include ComEd, Ameren, Illinois Electric Cooperatives, Corn Belt Energy Corporation and others. Each restores its own service area — report an outage to your serving utility so crews can be dispatched.