Marion County Power Outage History
2015–2025 · Iowa
Top 20% most reliable nationally — infrequent, short outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jan 1, 2020 | 2 hrs | 3,849 (17%) | Unnamed event |
| Jun 28, 2024 | 3 hrs | 3,819 (17%) | Funnel Cloud |
| Apr 16, 2024 | 2 hrs | 3,685 (16%) | Drought |
| Aug 19, 2018 | 0 hrs | 3,579 (16%) | Unnamed event |
| Mar 25, 2020 | 3 hrs | 2,998 (13%) | Unnamed event |
Over the 11 years from 2015 to 2025, Marion County recorded 216 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Marion County started January 1, 2020, lasting 2 hours and leaving up to 3,849 customers without power (17% of the county) at its peak.
July has historically been the worst month for outages in Marion County, with 34 events recorded during that month across the dataset.
Based on this history, Marion County earns a Reliability Grade of A, placing it in the 89th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Marion County's outage profile
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Similar counties in Iowa
Counties with the closest reliability grade and national percentile to Marion County.
| County | Grade | National percentile |
|---|---|---|
| Cass County | A | 89th |
| Adair County | A | 90th |
| Carroll County | A | 88th |
| Black Hawk County | A | 88th |
| Osceola County | A | 88th |
FAQ
How often does power go out in Marion County?
Between 2015 and 2025, Marion County recorded 216 outage events, averaging 2.4 hours each.
What is Marion County's reliability grade?
Marion County has a Reliability Grade of A, in the 89th national percentile.
What was the worst power outage in Marion County?
The worst outage on record started January 1, 2020, lasting 2 hours and affecting up to 3,849 customers.