Mitchell CountyPower Outage History
What this grade means
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
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 hr | 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 |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Mitchell County, Iowa that day.
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).
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 |
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 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.