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Power Outages in Cook County, IL

As of October 15, 2026 00:30 UTC, about 80 customers are without power in Cook County, IL across 20 reported incidents. Commonwealth Edison Co publishes only a system-wide total, not county figures. There is no live feed for University of Illinois and Village of Winnetka - (IL), so outages in their service area aren't counted. In 2025, the average customer here lost power for about 1.4 hours.

Cook County, IL is served by 4 tracked utilities.

Cite this data
URL
https://massoutage.com/illinois/cook-county
As of
October 15, 2026 00:30 UTC
Publisher
MassOutage

MassOutage, "Power Outages in Cook County, IL", live data as of October 15, 2026 00:30 UTC. https://massoutage.com/illinois/cook-county

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Cook County, IL
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This county Loading live outagesout
Scattered outages

80 customers without power

Across 20 reported incidents.

Utility ETR: October 17, 2026 00:15 UTC (utility's estimate)

Not counted: no live feed for University of Illinois and Village of Winnetka - (IL).

Live data as of

Live status by utility · Cook County

0.0%of this county's ~2,395,489 customers are served by utilities with a county-level live feed.

Blind spots

We can't see outages for: University of Illinois, Village of Winnetka - (IL). Their customers are not in any number on this page; check their own outage maps.

Only visible while reporting outages: Northern Indiana Pub Serv Co. Zero here is not a confirmed all-clear.

System-wide total only, no county split: Commonwealth Edison Co.

UtilityFeedOutServed% outSmall outagesIncidentsUtility ETRAs of
Commonwealth Edison CoLive · total onlynot by county------
Northern Indiana Pub Serv CoOutages onlynone reported------
University of IllinoisNo live feedcan't see------
Village of Winnetka - (IL)No live feedcan't see------

Electricity-dependent residents

HHS emPOWER · data October 7, 2026

Medicare beneficiaries in Cook Countywho rely on electricity-dependent medical equipment (ventilators, oxygen concentrators, home dialysis, powered wheelchairs, and more). HHS reports counts of 1–10 as “≤11”. Medicare only, so the full at-risk population is larger.

Power-dependent
33,574
Oxygen service
5,550
Dialysis (facility)
6,193
Home health / hospice
7,238
By ZIP code (166)
ZIPPower-dependentVentilatorsO2 concentratorsHome dialysis
606285921933916
606205792334413
606175642132618
606195301930712
6041148729332≤11
6045347021315≤11
6064342416256≤11
60629392≤11243≤11
6047737414238≤11
6063435613214≤11
6046234725192≤11
60010330≤11213≤11
6001632814199≤11
6040932618209≤11
60062316≤11176≤11
6063730813200≤11
6063830614200≤11
60623299≤11173≤11
6063929713170≤11
60641286≤1116814
60651282≤11168≤11
60649281≤11160≤11
60056277≤11157≤11
6043827512188≤11
60707270≤11161≤11
60644267≤11150≤11
60653266≤11159≤11
601932630162≤11
606082601613712
6063625812163≤11
60640256≤11145≤11
60630254≤11157≤11
60004251≤11145≤11
60618250≤11137≤11
60402250≤11165≤11
60615247≤11153≤11
60621244≤11142≤11
60616242≤11136≤11
60525240≤11171≤11
6046723912144≤11
60609236≤11155≤11
60452230≤11155≤11
60443227≤11132≤11
60201227≤11125≤11
60804224≤1112017
60624224≤11137≤11
60466223≤11146≤11
60025220≤11115≤11
60647219≤11125≤11
60107214≤11136≤11
60067213≤11106≤11
60652212≤11125≤11
60632211≤11119≤11
60473211≤11122≤11
60625207≤11129≤11
60120200≤11116≤11
60068200≤11103≤11
60007199≤11127≤11
60714198≤11108≤11
60090198≤11119≤11
60463196≤11125≤11
60612189≤11112≤11
60655187≤11118≤11
60459183≤11124≤11
60803182≤11121≤11
60076182≤11101≤11
60610181≤1191≤11
60077180≤11105≤11
606601781895≤11
6082717612107≤11
60419174≤11103≤11
60611172≤11770
6048717213100≤11
60074171≤11102≤11
60631169≤1193≤11
60614169≤1181≤11
60302169≤1188≤11
60018168≤1197≤11
60426167≤11100≤11
60153164≤1194≤11
60053164≤1198≤11
60164161≤1196≤11
60005161≤1195≤11
60465160≤1196≤11
60169160≤1196≤11
60626159≤1190≤11
60478159≤11101≤11
60439159≤1196≤11
60706154≤1194≤11
60646153≤1189≤11
60154152≤11100≤11
60805150≤11102≤11
60645145≤1175≤11
60133145≤1183≤11
60659141≤1182≤11
60455141≤1197≤11
60430141≤1191≤11
60429139≤1183≤11
60104135≤1173≤11
60008135≤1180≤11
60657133≤1174≤11
60445131≤1191≤11
60194131≤1179≤11
60613130≤1167≤11
60406125≤1174≤11
60656124≤1175≤11
60622121≤1174≤11
604821211287≤11
60464120≤11700
60202119≤1169≤11
60471113≤1169≤11
60091107≤1163≤11
60712100≤1157≤11
60513100≤1161≤11
60415100≤1169≤11
6052698≤1162≤11
6016097≤1158≤11
6013094≤1152≤11
6063390≤1161≤11
6047590≤1165≤11
6045788≤1161≤11
6013188≤1163≤11
6007088≤1147≤11
6002685≤1140≤11
6053483≤1155≤11
6042283≤1138≤11
6046182≤1140≤11
6045881≤1152≤11
6042881≤1149≤11
6019280≤1150≤11
6009380≤1143≤11
6042576≤1140≤11
6054675≤1144≤11
6015574≤1146≤11
6060769≤1139≤11
6060568≤11270
6017663≤11410
6055859≤1137≤11
6030458≤11370
6016256≤1132≤11
6030555≤11290
60171550360
6045654≤1143≤11
60501500330
6064249≤11300
6017342027≤11
6060140018≤11
6016338≤11200
60472370230
6002234020≤11
6046932018≤11
6047628≤1121≤11
6065426≤1114≤11
6048025≤11120
60301180≤110
6060617≤11≤11≤11
6019517≤11≤110
6020316≤11≤11≤11
60165130≤110
60661≤110≤110
60604≤110≤110
60603≤11≤11≤110
60602≤11≤11≤110
60141≤110≤110
60043≤110≤110
60029≤11≤11≤110

Emergency managers can request identified beneficiary lists through their state health department via the HHS emPOWER program.

🔔 Alerts for Cook County, IL

Outage began, grew, restoration estimate changed, restored: by email, Slack, Teams, Discord or signed webhook, for Cook County or any town and utility in it.

Get alerts for Cook CountySend updates to your dashboardRSS feed
◢ ACTIVE WEATHER ALERTS · NWS

No active NWS alerts for Cook County right now.

Recent NWS alert activity · Cook County

Cook County has been under 66 National Weather Service alerts recently, most recently a Flood Advisory on October 2, 2026.

  • Beach Hazards Statement ×25
  • Flood Advisory ×15
  • Flood Watch ×11
  • Special Weather Statement ×6
  • Hydrologic Outlook ×5
  • Flood Warning ×2

Latest Cook County, IL outage updates

A running log of how this outage has changed, updated automatically as utilities report in.

  1. RESOLVED

    Power restored after 2h 50m

  2. IMPROVING

    Improving: down to 284 customers out

  3. OUTAGE BEGAN

    Outage began: 540 customers out (0.0% of the county)

  4. RESOLVED

    Power restored after 50m

  5. OUTAGE BEGAN

    Outage began: 696 customers out (0.0% of the county)

  6. RESOLVED

    Power restored after 5h 5m

  7. GREW

    Outage grew to 747 customers out (0.0% of the county)

  8. IMPROVING

    Improving: down to 399 customers out

Outage trend · Cook County, IL
80customers out · peak 696
Data as of Oct 15, 2026 00:30 UTC
Cook County, IL: customers without power, last 24 hoursPeak 696 customers out; latest 80 as of Oct 15, 2026 00:30 UTC. Each point is the highest reading in its interval.0200400600800Oct 146 AM12 PM6 PM
Use the arrow keys to read values.
Times in EDT. Shaded stretches had no reading.

Hardest-hit cities in Cook County

Where this event is concentrated across the county's towns and townships.

Per-city live breakdown needs data

Live outage counts are tracked at the county level; a city-by-city split within Cook Countyisn't available yet.

Historical reliability

In 2025, the average customer in Cook County went about 1.4 hours without power. Peak simultaneous outage on record reached 279,858 customers.

Official state benchmark (EIA 2025)Source: US EIA

The US EIA reports Illinois utilities averaged 2.4 hrs without power per customer (SAIDI) in 2025, a cross-check on our county estimate of 1.4 hrs.

A decade of outages (2015–2025)
avg hrs without power / customer
Cook County average outage hours per customer by year2015–2025: 2015 1.6h, 2016 1.1h, 2017 1.3h, 2018 2.2h, 2019 1.2h, 2020 5.6h, 2021 1.6h, 2022 1.4h, 2023 1.0h, 2024 2.7h, 2025 1.4h. Highlighted: 2020.02461.6h20151.1h20161.3h20172.2h20181.2h20195.6h20201.6h20211.4h20221.0h20232.7h20241.4h2025
Use the arrow keys to read values.

Worst year here was 2020 (peak 279,858 customers out) · decade average 1.9 hrs without power per customer/yr.

YearOutage eventsPeak customers outAvg hrs/customer
2015139144,5381.6
201611195,6611.1
201717522,3611.3
2018208101,6622.2
201917214,6821.2
2020201279,8585.6
202111373,8291.6
202213767,1141.4
202325323,4371.0
2024163155,2042.7
202513063,6451.4

Cost of power in Cook County

ENERGY & AI DEMAND →

Estimated residential electricity price for Cook County, customer-weighted across the utilities serving it (US EIA, 2025). Retail prices aren't published at the county level; this is a derived estimate.

17.7¢/kWh
estimated residential average
▲ 34% since 2015
vs Illinois avg 19.2¢
vs US avg 20.0¢
BY UTILITY · RESIDENTIAL ¢/kWh

Weighted by each utility's residential customer count (utilities report customers at the state level; a per-county share isn't published). Rising retail prices track a national demand surge; see energy & the data-center boom.

Worst recorded outages
STARTEDPEAK OUTDURATION
August 5, 2020279,85839d 18h
July 5, 2024155,20437d 5h
March 11, 2015144,5382d
November 23, 2018101,66213d 19h
February 19, 201695,6612d 23h
See the biggest power outages in US history →
Natural hazards & outage risk
ELEVATED

Very High ice storms exposure · 1.9 hrs/yr of outages over the last decade.

TornadoVery High
Ice stormVery High
Strong windVery High
FloodingVery High
Heat waveVery High
EarthquakeRelatively High

FEMA rates this county’s social vulnerability relatively high: outages hit harder where communities are less able to respond and recover.

All hazard rankings →

Power outages in Cook County: FAQ

How often does Cook County, IL lose power?
Based on EAGLE-I records, Cook County, IL logged 130 distinct outage events in 2025, averaging about 1.4 hours without power per customer over the year.
What was the worst power outage in Cook County, IL?
The largest tracked outage peaked at 279,858 customers without power, beginning August 5, 2020 and lasting about 39d 18h.
Is there a power outage in Cook County, IL right now?
Yes, about 80 customers are currently without power across 20 reported incident(s).
Which utilities serve Cook County, IL?
Tracked electric providers include Commonwealth Edison Co, Northern Indiana Pub Serv Co.
Nearby counties
Berrien CountyDuPage CountyKane CountyLake County
Cities & towns in Cook County

Chicago, Cicero, Schaumburg, Evanston, Arlington Heights, Skokie, Palatine, Des Plaines, Orland Park, Oak Lawn, Berwyn, Mount Prospect, Tinley Park, Oak Park, Hoffman Estates, Glenview. Outage counts for these communities are reported at the Cook County level shown above.

ZIP codes in Cook County

Outages are tracked at the county level; these ZIP codes fall within Cook County (showing 40 of 167).

60004, 60005, 60007, 60008, 60010, 60016, 60018, 60022, 60025, 60026, 60029, 60043, 60053, 60056, 60062, 60067, 60068, 60070, 60074, 60076, 60077, 60090, 60091, 60093, 60104, 60107, 60120, 60130, 60131, 60141, 60153, 60154, 60155, 60160, 60162, 60163, 60164, 60165, 60169, 60171

Electric providers serving this county

From EIA-861 service territory, with official reliability where reported.

ProviderOfficial SAIDI (EIA)LiveReport outage
Commonwealth Edison Co1.3 hrsLive · total only-
Northern Indiana Pub Serv Co8.9 hrsOutages only-
University of Illinois-No live feed-
Village of Winnetka - (IL)-No live feed-

Data from DOE/ORNL ODIN, DOE EAGLE-I, EIA Form 861 (utility reliability), EIA electricity retail prices and FEMA National Risk Index, every source we read. Historical figures derive from the DOE/ORNL EAGLE-I dataset (EAGLE-I tracked roughly 0% of Illinois customers). Machine-readable data: /api/v1/counties/17031 and /api/v1/counties/17031/history. Live data as of .