Power Outages in Illinois by City
Most of Illinois's outage time in 2024 came on a few major storm days: 157 minutes in total, but 59 on ordinary days.
Power outage record for Illinois
Worst year: 2020. Includes major storm days. Source: EIA Form 861.
- 2024: Illinois electric customers averaged 0.85 outages and 157 minutes (2.6 hours) without power. Average across all reporting US utilities: 611 minutes. That makes Illinois 11th of 50 states (1 = fewest outage minutes).
- Storm days vs. ordinary days: leaving out major event days, the figure drops to 59 minutes (US 126). About 62% of the year's outage time came on a handful of severe days.
- Six-year record: the worst year was 2020 (331 minutes), the best 2022 (90). 2024 was close to the 2019–2023 average of 175 minutes.
- Largest utilities: Commonwealth Edison Co, 4,229,904 customers, 132 minutes; Ameren Illinois Company, 1,249,900 customers, 224 minutes; MidAmerican Energy Co, 85,293 customers, 352 minutes.
- Spread between utilities: among 8 utilities with 25,000+ customers, City of Naperville - (IL) had the least outage time (25 minutes) and Southeastern IL Elec Coop, Inc the most (603 minutes). Source: EIA Form 861 reliability data, 2019–2024
- Storm record since 2015: 24,174 NOAA storm reports in Illinois, led by thunderstorm wind 8,045, hail 3,604, winter weather 1,440. Power outages are named in 145 storm episodes. Source: NOAA Storm Events Database
- December 28, 2015, Peoria (ice storm): “About 75,000 people lost power for up to 3 days after the storm.” Source: NOAA Storm Events Database
- June 21, 2019, Williamson (thunderstorm wind): “At least 5,000 utility customers were without power.” Source: NOAA Storm Events Database
- July 13, 2016, Franklin (thunderstorm wind): “About 4,000 utility customers were without power.” Source: NOAA Storm Events Database
Commonwealth Edison Co serves the most customers (4,229,904). Source: EIA Form 861.
Illinois ranks 1st of 6 here (1 = fewest minutes). Source: EIA Form 861.
June had the most (28). Source: NOAA Storm Events Database.
Checked September 2026.
Who to call in Illinois, city by city
10 Illinois cities on this site and the electric utility for each. What to do while you wait is in our power outage guide.
- Chicago ComEd
- Aurora ComEd
- Joliet ComEd
- Naperville Naperville Electric Utility
- Rockford ComEd
- Elgin ComEd
- Springfield City Water, Light & Power (CWLP)
- Peoria Ameren Illinois
- Waukegan ComEd
- Champaign Ameren Illinois
Frequently asked questions
Is there a power outage in Illinois right now?
Not on this site: no reports from Illinois in the last 24 hours.
How long are power outages in Illinois?
In 2024 the average Illinois electric customer was without power for 157 minutes (2.6 hours) across 0.85 interruptions, according to EIA Form 861 data. The average across all reporting US utilities was 611 minutes.
Which Illinois utility had the most outage time in 2024?
Among utilities with at least 25,000 customers, Southeastern IL Elec Coop, Inc reported the most: 603 minutes per customer. City of Naperville - (IL) reported the least.
When do storms knock out power in Illinois?
NOAA storm reports name power outages in 145 storm episodes in Illinois since 2015, most often in June (28 episodes).
Report counts are user-submitted; other figures name their official source. How our data works
Cities in Illinois with Power Outages Information
Naperville
no reports in the last 24 hours · pop. 149,540
Naperville Electric Utility
Springfield
no reports in the last 24 hours · pop. 114,230
City Water, Light & Power (CWLP)