Pocahontas CountyPower Outage History
2015–2025 · Iowa
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 |
|---|---|---|---|
| May 24, 2024 | 7 hrs | 1,012 (32%) | Thunderstorm Wind |
| Jul 29, 2025 | 10 hrs | 899 (28%) | Thunderstorm Wind |
| Nov 11, 2020 | 3 hrs | 893 (28%) | Drought |
| Nov 10, 2020 | 8 hrs | 853 (27%) | Drought |
| Nov 26, 2015 | 14 hrs | 768 (24%) | Winter Storm |
Over the 11 years from 2015 to 2025, Pocahontas County recorded 327 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Pocahontas County started May 24, 2024 (Thunderstorm Wind), lasting 7 hours and leaving up to 1,012 customers without power (32% of the county) at its peak.
August has historically been the worst month for outages in Pocahontas County, with 42 events recorded during that month across the dataset.
Based on this history, Pocahontas County earns a Reliability Grade of B, placing it in the 68th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Pocahontas County's outage profile
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Read our mission →Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Pocahontas County.
| County | Grade | National percentile |
|---|---|---|
| Mitchell County | B | 67th |
| Henry County | B | 71st |
| Pottawattamie County | B | 72nd |
| Winnebago County | B | 72nd |
| Delaware County | B | 72nd |
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 Pocahontas County?
Between 2015 and 2025, Pocahontas County recorded 327 outage events, averaging 2.2 hours each.
What is Pocahontas County's reliability grade?
Pocahontas County has a Reliability Grade of B, in the 68th national percentile.
What was the worst power outage in Pocahontas County?
The worst outage on record started May 24, 2024 (Thunderstorm Wind), lasting 7 hours and affecting up to 1,012 customers.