Jersey County Power Outage History
2014–2025 · 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 |
|---|---|---|---|
| Jan 14, 2021 | 1 hrs | 4,578 (33%) | Unnamed event |
| Mar 5, 2025 | 4 hrs | 4,393 (32%) | Unnamed event |
| Mar 14, 2025 | 24 hrs | 2,824 (20%) | High Wind |
| Aug 3, 2022 | 8 hrs | 2,182 (16%) | Thunderstorm Wind |
| May 22, 2025 | 1 hrs | 2,125 (15%) | Unnamed event |
Over the 12 years from 2014 to 2025, Jersey County recorded 329 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Jersey County started January 14, 2021, lasting 1 hours and leaving up to 4,578 customers without power (33% of the county) at its peak.
July has historically been the worst month for outages in Jersey County, with 48 events recorded during that month across the dataset.
Based on this history, Jersey County earns a Reliability Grade of A, placing it in the 84th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Jersey 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 Jersey County.
| County | Grade | National percentile |
|---|---|---|
| Coles County | A | 84th |
| Menard County | A | 82nd |
| Greene County | A | 81st |
| McLean County | A | 81st |
| Richland County | A | 87th |
FAQ
How often does power go out in Jersey County?
Between 2014 and 2025, Jersey County recorded 329 outage events, averaging 2.6 hours each.
What is Jersey County's reliability grade?
Jersey County has a Reliability Grade of A, in the 84th national percentile.
What was the worst power outage in Jersey County?
The worst outage on record started January 14, 2021, lasting 1 hours and affecting up to 4,578 customers.