Delaware County Power Outage History
2014–2025 · Indiana
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 4, 2018 | 7 hrs | 10,696 (13%) | Unnamed event |
| Nov 5, 2017 | 1 hrs | 9,899 (12%) | Thunderstorm Wind |
| Nov 5, 2017 | 1 hrs | 9,898 (12%) | Thunderstorm Wind |
| Nov 6, 2017 | 1 hrs | 9,622 (12%) | Thunderstorm Wind |
| Nov 6, 2017 | 2 hrs | 9,615 (12%) | Thunderstorm Wind |
Over the 12 years from 2014 to 2025, Delaware County recorded 661 distinct power outage events, averaging 3.0 hours per event.
The single worst outage on record in Delaware County started March 4, 2018, lasting 7 hours and leaving up to 10,696 customers without power (13% of the county) at its peak.
November has historically been the worst month for outages in Delaware County, with 111 events recorded during that month across the dataset.
Based on this history, Delaware County earns a Reliability Grade of B, placing it in the 66th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Delaware County's outage profile
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Outage-prep kit
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Similar counties in Indiana
Counties with the closest reliability grade and national percentile to Delaware County.
| County | Grade | National percentile |
|---|---|---|
| Ripley County | B | 66th |
| Fayette County | B | 68th |
| Carroll County | B | 68th |
| Tipton County | B | 63rd |
| Clark County | B | 69th |
FAQ
How often does power go out in Delaware County?
Between 2014 and 2025, Delaware County recorded 661 outage events, averaging 3.0 hours each.
What is Delaware County's reliability grade?
Delaware County has a Reliability Grade of B, in the 66th national percentile.
What was the worst power outage in Delaware County?
The worst outage on record started March 4, 2018, lasting 7 hours and affecting up to 10,696 customers.