Osceola CountyPower Outage History
2015–2025 · Iowa
Top 20% most reliable nationally — infrequent, short outages.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Nov 1, 2021 | <1 hr | 1,063 (27%) | Unnamed event |
| Apr 11, 2019 | 54 hrs | 824 (21%) | Ice Storm |
| Jun 11, 2025 | 17 hrs | 540 (14%) | Thunderstorm Wind |
| Jan 5, 2016 | <1 hr | 475 (12%) | Unnamed event |
| Jun 6, 2015 | 1 hrs | 473 (12%) | Unnamed event |
Over the 11 years from 2015 to 2025, Osceola County recorded 63 distinct power outage events, averaging 3.5 hours per event.
The single worst outage on record in Osceola County started November 1, 2021, lasting less than 1 hour and leaving up to 1,063 customers without power (27% of the county) at its peak.
June has historically been the worst month for outages in Osceola County, with 11 events recorded during that month across the dataset.
Based on this history, Osceola County earns a Reliability Grade of A, placing it in the 88th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Osceola 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 Osceola County.
| County | Grade | National percentile |
|---|---|---|
| Black Hawk County | A | 88th |
| Plymouth County | A | 88th |
| Carroll County | A | 88th |
| Cherokee County | A | 87th |
| Union County | A | 87th |
Most reliable counties in Iowa
The top 3 counties in Iowa by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Clay County | A | 97th |
| Emmet County | A | 95th |
| Bremer County | A | 94th |
Least reliable counties in Iowa
The bottom 3 counties in Iowa by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Marshall County | F | 6th |
| Tama County | F | 12th |
| Jasper County | F | 14th |
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 Osceola County?
Between 2015 and 2025, Osceola County recorded 63 outage events, averaging 3.5 hours each.
What is Osceola County's reliability grade?
Osceola County has a Reliability Grade of A, in the 88th national percentile.
What was the worst power outage in Osceola County?
The worst outage on record started November 1, 2021, lasting less than 1 hour and affecting up to 1,063 customers.