Jackson County Power Outage History
2015–2025 · Iowa
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 |
|---|---|---|---|
| Jul 11, 2025 | 20 hrs | 2,819 (22%) | Tornado |
| Mar 31, 2023 | 44 hrs | 2,111 (17%) | Winter Storm |
| May 22, 2024 | 24 hrs | 1,827 (15%) | Thunderstorm Wind |
| Aug 10, 2020 | 148 hrs | 1,072 (9%) | Thunderstorm Wind |
| Jan 11, 2024 | 1 hrs | 1,023 (8%) | Winter Storm |
Over the 11 years from 2015 to 2025, Jackson County recorded 169 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Jackson County started July 11, 2025 (Tornado), lasting 20 hours and leaving up to 2,819 customers without power (22% of the county) at its peak.
June has historically been the worst month for outages in Jackson County, with 27 events recorded during that month across the dataset.
Based on this history, Jackson County earns a Reliability Grade of A, placing it in the 87th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Jackson County's outage profile
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Jackson County.
| County | Grade | National percentile |
|---|---|---|
| Union County | A | 87th |
| Cherokee County | A | 87th |
| Buena Vista County | A | 87th |
| Plymouth County | A | 88th |
| Palo Alto County | A | 86th |
FAQ
How often does power go out in Jackson County?
Between 2015 and 2025, Jackson County recorded 169 outage events, averaging 3.3 hours each.
What is Jackson County's reliability grade?
Jackson County has a Reliability Grade of A, in the 87th national percentile.
What was the worst power outage in Jackson County?
The worst outage on record started July 11, 2025 (Tornado), lasting 20 hours and affecting up to 2,819 customers.