Fremont CountyPower Outage History
2015–2025 · Iowa
Better than average — fewer or shorter outages than most counties.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Nov 29, 2022 | 7 hrs | 3,098 (54%) | Unnamed event |
| Sep 14, 2022 | 2 hrs | 2,750 (48%) | Unnamed event |
| Jun 25, 2021 | 7 hrs | 2,320 (40%) | Thunderstorm Wind |
| Mar 4, 2021 | 2 hrs | 2,311 (40%) | Unnamed event |
| May 12, 2019 | 2 hrs | 1,992 (35%) | Unnamed event |
Over the 11 years from 2015 to 2025, Fremont County recorded 293 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Fremont County started November 29, 2022, lasting 7 hours and leaving up to 3,098 customers without power (54% of the county) at its peak.
June has historically been the worst month for outages in Fremont County, with 45 events recorded during that month across the dataset.
Based on this history, Fremont County earns a Reliability Grade of B, placing it in the 64th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Fremont 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 Fremont County.
| County | Grade | National percentile |
|---|---|---|
| Des Moines County | B | 63rd |
| Wright County | B | 62nd |
| Ida County | B | 62nd |
| Harrison County | B | 61st |
| Lee County | B | 61st |
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 Fremont County?
Between 2015 and 2025, Fremont County recorded 293 outage events, averaging 2.8 hours each.
What is Fremont County's reliability grade?
Fremont County has a Reliability Grade of B, in the 64th national percentile.
What was the worst power outage in Fremont County?
The worst outage on record started November 29, 2022, lasting 7 hours and affecting up to 3,098 customers.