Worth CountyPower Outage History
2014–2025 · Iowa
Average — typical outage frequency and duration nationally.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jul 19, 2017 | 6 hrs | 5,331 (85%) | Funnel Cloud |
| Apr 11, 2019 | 118 hrs | 3,772 (60%) | High Wind |
| Dec 16, 2021 | 50 hrs | 3,183 (51%) | Winter Storm |
| Mar 15, 2025 | 3 hrs | 1,847 (29%) | Unnamed event |
| May 6, 2025 | 4 hrs | 1,696 (27%) | Unnamed event |
Over the 12 years from 2014 to 2025, Worth County recorded 508 distinct power outage events, averaging 3.1 hours per event.
The single worst outage on record in Worth County started July 19, 2017 (Funnel Cloud), lasting 6 hours and leaving up to 5,331 customers without power (85% of the county) at its peak.
July has historically been the worst month for outages in Worth County, with 64 events recorded during that month across the dataset.
Based on this history, Worth County earns a Reliability Grade of C, placing it in the 51st percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Worth County.
| County | Grade | National percentile |
|---|---|---|
| Keokuk County | C | 51st |
| Van Buren County | C | 52nd |
| Hardin County | C | 52nd |
| Jefferson County | C | 52nd |
| Scott County | C | 50th |
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 Worth County?
Between 2014 and 2025, Worth County recorded 508 outage events, averaging 3.1 hours each.
What is Worth County's reliability grade?
Worth County has a Reliability Grade of C, in the 51st national percentile.
What was the worst power outage in Worth County?
The worst outage on record started July 19, 2017 (Funnel Cloud), lasting 6 hours and affecting up to 5,331 customers.