Scott County Power Outage History
2015–2025 · Iowa
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 10, 2020 | 155 hrs | 56,299 (46%) | Thunderstorm Wind |
| Jul 16, 2024 | 37 hrs | 17,742 (15%) | Flood |
| Oct 7, 2016 | 27 hrs | 16,306 (13%) | Thunderstorm Wind |
| Jul 11, 2025 | 26 hrs | 16,097 (13%) | Thunderstorm Wind |
| Oct 29, 2025 | 4 hrs | 12,150 (10%) | Unnamed event |
Over the 11 years from 2015 to 2025, Scott County recorded 645 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Scott County started August 10, 2020 (Thunderstorm Wind), lasting 155 hours and leaving up to 56,299 customers without power (46% of the county) at its peak.
June has historically been the worst month for outages in Scott County, with 97 events recorded during that month across the dataset.
Based on this history, Scott County earns a Reliability Grade of C, placing it in the 50th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Scott County's outage profile
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Scott County.
| County | Grade | National percentile |
|---|---|---|
| Mills County | C | 49th |
| Keokuk County | C | 51st |
| Worth County | C | 51st |
| Hancock County | C | 48th |
| Van Buren County | C | 52nd |
FAQ
How often does power go out in Scott County?
Between 2015 and 2025, Scott County recorded 645 outage events, averaging 2.2 hours each.
What is Scott County's reliability grade?
Scott County has a Reliability Grade of C, in the 50th national percentile.
What was the worst power outage in Scott County?
The worst outage on record started August 10, 2020 (Thunderstorm Wind), lasting 155 hours and affecting up to 56,299 customers.