Cherokee 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 |
|---|---|---|---|
| Mar 19, 2025 | 6 hrs | 3,081 (36%) | Thunderstorm Wind |
| Dec 26, 2016 | 5 hrs | 2,379 (28%) | High Wind |
| Apr 5, 2017 | 0 hrs | 2,355 (28%) | Unnamed event |
| Jun 16, 2025 | 9 hrs | 1,889 (22%) | Hail |
| Feb 26, 2021 | 7 hrs | 1,772 (21%) | Drought |
Over the 11 years from 2015 to 2025, Cherokee County recorded 195 distinct power outage events, averaging 2.6 hours per event.
The single worst outage on record in Cherokee County started March 19, 2025 (Thunderstorm Wind), lasting 6 hours and leaving up to 3,081 customers without power (36% of the county) at its peak.
July has historically been the worst month for outages in Cherokee County, with 31 events recorded during that month across the dataset.
Based on this history, Cherokee County earns a Reliability Grade of A, placing it in the 87th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Cherokee County's outage profile
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Cherokee County.
| County | Grade | National percentile |
|---|---|---|
| Union County | A | 87th |
| Jackson County | A | 87th |
| Buena Vista County | A | 87th |
| Plymouth County | A | 88th |
| Osceola County | A | 88th |
FAQ
How often does power go out in Cherokee County?
Between 2015 and 2025, Cherokee County recorded 195 outage events, averaging 2.6 hours each.
What is Cherokee County's reliability grade?
Cherokee County has a Reliability Grade of A, in the 87th national percentile.
What was the worst power outage in Cherokee County?
The worst outage on record started March 19, 2025 (Thunderstorm Wind), lasting 6 hours and affecting up to 3,081 customers.