PowerOutageHistory
Reliability Grade
A
Top tier
2015-2025
Illinois

Edwards CountyPower Outage History

20152025 · Illinois
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What this grade means

Top 20% most reliable nationally — infrequent, short outages. This county ranks in the most reliable fifth of all US counties in our dataset, based on 12 years of real DOE outage records: outages happen less often here, and when they do occur they tend to be resolved quickly compared to the rest of the country. Baseline outage risk is low, though a severe local storm can still occasionally cause a longer-than-usual outage regardless of the long-term track record.

Takeaway
Low outage risk
Reliability Rank
Fuller bar = more reliable
Nationwide91st pct
In Illinois#7 of 102
See full Illinois rankings →
Total events
223
Recorded 2015–2025
Avg duration
2.0 hrs
Per outage event
Longest outage
24 hrs
Single worst event on record
Customers served
6,912
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Aug 19, 20151 hrs2,077 (30%)Unnamed event
May 27, 202415 hrs1,482 (21%)Thunderstorm Wind
Jun 17, 202215 hrs1,315 (19%)Excessive Heat
Jan 6, 2025<1 hr1,115 (16%)Winter Storm
Jun 5, 20191 hrs962 (14%)Unnamed event

Was There an Outage on a Specific Date?

Pick a date to see whether a power outage was recorded for Edwards County, Illinois that day.

Over the 11 years from 2015 to 2025, Edwards County recorded 223 distinct power outage events, averaging 2.0 hours per event.

The single worst outage on record in Edwards County started August 19, 2015, lasting 1 hours and leaving up to 2,077 customers without power (30% of the county) at its peak.

July has historically been the worst month for outages in Edwards County, with 31 events recorded during that month across the dataset.

Based on this history, Edwards County earns a Reliability Grade of A, placing it in the 91st percentile nationally for grid reliability (higher percentile = more reliable).

Similar counties in Illinois

Counties with the closest reliability grade and national percentile to Edwards County.

CountyGradeNational percentile
Clay CountyA91st
Schuyler CountyA91st
Lake CountyA92nd
Cass CountyA92nd
Effingham CountyA89th

Most reliable counties nationally

The top 3 counties nationally by reliability grade and percentile.

CountyStateGradeNational percentile
Clay CountySouth DakotaA100th
Clearwater CountyMinnesotaA99th
Limestone CountyAlabamaA99th

Least reliable counties nationally

The bottom 3 counties nationally by reliability grade and percentile.

FAQ

How often does power go out in Edwards County?

Between 2015 and 2025, Edwards County recorded 223 outage events, averaging 2.0 hours each.

What is Edwards County's reliability grade?

Edwards County has a Reliability Grade of A, in the 91st national percentile.

What was the worst power outage in Edwards County?

The worst outage on record started August 19, 2015, lasting 1 hours and affecting up to 2,077 customers.

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Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.