Illinois power outages

Live outages across Illinois from Ameren Illinois, updated every 10 minutes. 17 counties have customers without power right now.

Right now

Normal: scattered outages

Normal: fewer than 0.1% of customers out. Elevated: 0.1% or more. Major outage: 1% or more.

384customers without power

A customer is one electric account, usually one home or business, not one person. Utilities count outages this way.

0.03% of 1,219,050 customersUpdated 2 min ago

We check every utility's outage data every 10 minutes. Each utility updates its own map on its own schedule, usually every 5 to 15 minutes.

Ameren Illinois384 / 1,219,050

Commonwealth Edison Cono live feed

This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.

Serves part of the state, per federal utility records

From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.

. Check its own outage map.

City of Springfield - (IL)no live feed

This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.

Serves part of the state, per federal utility records

From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.

. Check its own outage map.

City of Naperville - (IL)no live feed

This utility doesn't publish outage data we can read automatically, so it isn't in our totals. Its own outage map has its current outages.

Serves part of the state, per federal utility records

From EIA Form 861, the U.S. Energy Information Administration's yearly survey of every electric utility and the areas it serves.

. Check its own outage map.

Outage map

<0.01%0.01%0.1%1%+ outno live feed

Color shows the share of each county's customers without power right now.

Counties with the most outages

83 counties with live data

County	Out	Customers i A customer is one electric account, usually one home or business, not one person. Utilities count outages this way.	% out i Customers without power divided by all the customers the utility serves in this area.
Knox County	243	24,373	1.00%
Warren County	70	7,699	0.91%
St. Clair County	22	116,097	0.02%
Peoria County	13	90,251	0.01%
Adams County	7	27,318	0.03%
Madison County	7	109,006	<0.01%
Bureau County	4	9,847	0.04%
Champaign County	4	97,658	<0.01%
Lawrence County	3	5,207	0.06%
Macoupin County	3	19,028	0.02%
Marshall County	2	5,214	0.04%
Effingham County	1	10,618	<0.01%
LaSalle County	1	26,370	<0.01%
McLean County	1	60,569	<0.01%
Morgan County	1	15,135	<0.01%

Outage history in Illinois

2014–2025 record

Illinois averaged 3.7 significant outages a year in 2023–2025, fewer than most states.

In the 12 months to December 2025, there were 4. Half were over within 6.5 hours; the longest lasted 16 hours, starting August 16, 2025.

The largest on record began August 10, 2020, with 757,257 customers out at once.

Outages are most common in June.

3.7significant outages a year (2023–2025)

At least 1% of the area's customers, and at least 100, without power at the same time. Outages less than 6 hours apart count as one.

6 hourstypical (median) length

Half of significant outages here ended sooner than this, and half lasted longer.

3.9 dayslongest on record (August 2020)

757,257most customers out at once

Largest events (start)	Peak out	Lasted i How long this area stayed at or above the significant-outage line, not how long any one home was without power.	Customer-hours i Customers out multiplied by hours out, added up over the event. 1,000 customers out for 3 hours is 3,000 customer-hours.
August 10, 2020	757,257	3.9 days	24,638,301
July 16, 2024	391,133	1.8 days	7,442,768
June 29, 2023	234,014	3.2 days	9,182,342
March 13, 2015	207,255	15 minutes	51,814
August 11, 2021	196,489	23 hours	2,638,550

Recorded outages from EAGLE-I, Oak Ridge National Laboratory (CC BY 4.0).

From EAGLE-I, Oak Ridge National Laboratory's record of utility outage data every 15 minutes since 2014 (CC BY 4.0). It covered about 9 in 10 U.S. customers.

Counties in Illinois

Utilities

Ameren Illinois
Commonwealth Edison Co no live feed
City of Springfield - (IL) no live feed
City of Naperville - (IL) no live feed
Corn Belt Energy Corporation no live feed
Southeastern IL Elec Coop, Inc no live feed
Southwestern Electric Coop Inc - (IL) no live feed
Norris Electric Coop no live feed
Jo-Carroll Energy, Inc no live feed