Jasper CountyPower Outage History
2015–2025 · Illinois
Average — typical outage frequency and duration nationally.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Apr 5, 2023 | 4 hrs | 2,356 (52%) | Hail |
| Apr 9, 2020 | 5 hrs | 2,118 (47%) | Unnamed event |
| Jun 18, 2025 | 5 hrs | 2,008 (44%) | Unnamed event |
| Apr 9, 2020 | 26 hrs | 1,876 (41%) | Unnamed event |
| Jun 17, 2022 | 16 hrs | 1,565 (35%) | Unnamed event |
Over the 11 years from 2015 to 2025, Jasper County recorded 342 distinct power outage events, averaging 2.3 hours per event.
The single worst outage on record in Jasper County started April 5, 2023 (Hail), lasting 4 hours and leaving up to 2,356 customers without power (52% of the county) at its peak.
May has historically been the worst month for outages in Jasper County, with 44 events recorded during that month across the dataset.
Based on this history, Jasper 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 Jasper County.
| County | Grade | National percentile |
|---|---|---|
| Hancock County | C | 54th |
| Johnson County | C | 53rd |
| Hardin County | C | 53rd |
| Bond County | C | 52nd |
| Piatt County | C | 52nd |
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 Jasper County?
Between 2015 and 2025, Jasper County recorded 342 outage events, averaging 2.3 hours each.
What is Jasper County's reliability grade?
Jasper County has a Reliability Grade of C, in the 54th national percentile.
What was the worst power outage in Jasper County?
The worst outage on record started April 5, 2023 (Hail), lasting 4 hours and affecting up to 2,356 customers.