Mitchell County Power Outage History
2014–2025 · Iowa
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Dec 16, 2021 | 50 hrs | 2,842 (38%) | Winter Storm |
| May 15, 2022 | 1 hrs | 2,130 (28%) | Hail |
| Apr 11, 2019 | 69 hrs | 2,022 (27%) | Unnamed event |
| Oct 8, 2016 | 2 hrs | 1,802 (24%) | Unnamed event |
| Apr 13, 2022 | 8 hrs | 1,456 (19%) | Tornado |
Over the 12 years from 2014 to 2025, Mitchell County recorded 267 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Mitchell County started December 16, 2021 (Winter Storm), lasting 50 hours and leaving up to 2,842 customers without power (38% of the county) at its peak.
May has historically been the worst month for outages in Mitchell County, with 35 events recorded during that month across the dataset.
Based on this history, Mitchell County earns a Reliability Grade of B, placing it in the 67th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Mitchell County's outage profile
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Outage-prep kit
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Mitchell County.
| County | Grade | National percentile |
|---|---|---|
| Pocahontas County | B | 68th |
| Fremont County | B | 64th |
| Henry County | B | 71st |
| Des Moines County | B | 63rd |
| Pottawattamie County | B | 72nd |
FAQ
How often does power go out in Mitchell County?
Between 2014 and 2025, Mitchell County recorded 267 outage events, averaging 2.9 hours each.
What is Mitchell County's reliability grade?
Mitchell County has a Reliability Grade of B, in the 67th national percentile.
What was the worst power outage in Mitchell County?
The worst outage on record started December 16, 2021 (Winter Storm), lasting 50 hours and affecting up to 2,842 customers.