Peoria County Power Outage History
2014–2025 · Illinois
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Dec 28, 2015 | 56 hrs | 23,261 (17%) | Ice Storm |
| Jul 11, 2020 | 26 hrs | 12,327 (9%) | Thunderstorm Wind |
| Jun 7, 2015 | 17 hrs | 11,440 (8%) | Thunderstorm Wind |
| Jun 21, 2015 | 7 hrs | 9,563 (7%) | Flash Flood |
| Jun 14, 2024 | 18 hrs | 8,930 (6%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Peoria County recorded 1,023 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Peoria County started December 28, 2015 (Ice Storm), lasting 56 hours and leaving up to 23,261 customers without power (17% of the county) at its peak.
June has historically been the worst month for outages in Peoria County, with 148 events recorded during that month across the dataset.
Based on this history, Peoria County earns a Reliability Grade of B, placing it in the 68th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Peoria County's outage profile
See more picks in our Best Small Power Stations (Under 1,000Wh) roundup.
Outage-prep kit
See our outage-prep guides.
Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Peoria County.
| County | Grade | National percentile |
|---|---|---|
| Sangamon County | B | 68th |
| Clinton County | B | 68th |
| Tazewell County | B | 69th |
| Pike County | B | 67th |
| McHenry County | B | 67th |
FAQ
How often does power go out in Peoria County?
Between 2014 and 2025, Peoria County recorded 1,023 outage events, averaging 2.9 hours each.
What is Peoria County's reliability grade?
Peoria County has a Reliability Grade of B, in the 68th national percentile.
What was the worst power outage in Peoria County?
The worst outage on record started December 28, 2015 (Ice Storm), lasting 56 hours and affecting up to 23,261 customers.