Hancock County Power Outage History
2014–2025 · Illinois
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 29, 2023 | 99 hrs | 5,674 (50%) | Thunderstorm Wind |
| Oct 2, 2023 | 2 hrs | 4,774 (42%) | Unnamed event |
| Jun 28, 2018 | 12 hrs | 4,062 (35%) | Thunderstorm Wind |
| Jan 25, 2021 | 2 hrs | 2,400 (21%) | Unnamed event |
| Apr 26, 2024 | 6 hrs | 2,349 (21%) | Unnamed event |
Over the 12 years from 2014 to 2025, Hancock County recorded 283 distinct power outage events, averaging 3.4 hours per event.
The single worst outage on record in Hancock County started June 29, 2023 (Thunderstorm Wind), lasting 99 hours and leaving up to 5,674 customers without power (50% of the county) at its peak.
June has historically been the worst month for outages in Hancock County, with 42 events recorded during that month across the dataset.
Based on this history, Hancock County earns a Reliability Grade of C, placing it in the 54th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Illinois
Counties with the closest reliability grade and national percentile to Hancock County.
| County | Grade | National percentile |
|---|---|---|
| Jasper County | C | 54th |
| Johnson County | C | 53rd |
| Hardin County | C | 53rd |
| Bond County | C | 52nd |
| Piatt County | C | 52nd |
FAQ
How often does power go out in Hancock County?
Between 2014 and 2025, Hancock County recorded 283 outage events, averaging 3.4 hours each.
What is Hancock County's reliability grade?
Hancock County has a Reliability Grade of C, in the 54th national percentile.
What was the worst power outage in Hancock County?
The worst outage on record started June 29, 2023 (Thunderstorm Wind), lasting 99 hours and affecting up to 5,674 customers.