Edwards County Power Outage History
2015–2025 · Illinois
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 19, 2015 | 1 hrs | 2,077 (30%) | Unnamed event |
| May 27, 2024 | 15 hrs | 1,482 (21%) | Thunderstorm Wind |
| Jun 17, 2022 | 15 hrs | 1,315 (19%) | Excessive Heat |
| Jan 6, 2025 | <1 hr | 1,115 (16%) | Winter Storm |
| Jun 5, 2019 | 1 hrs | 962 (14%) | Unnamed event |
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).
Sized for Edwards County's outage profile
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Outage-prep kit
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Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Edwards County.
| County | Grade | National percentile |
|---|---|---|
| Clay County | A | 91st |
| Schuyler County | A | 91st |
| Lake County | A | 92nd |
| Cass County | A | 92nd |
| Effingham County | A | 89th |
Most reliable counties in Illinois
The top 3 counties in Illinois by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Wabash County | A | 97th |
| Massac County | A | 94th |
| Kendall County | A | 93rd |
Least reliable counties in Illinois
The bottom 3 counties in Illinois by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Mercer County | F | 11th |
| Stark County | F | 13th |
| Henderson County | F | 19th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
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.