Cocke County Power Outage History
2017–2025 · Tennessee
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 |
|---|---|---|---|
| Apr 7, 2021 | 2 hrs | 16,668 (86%) | Unnamed event |
| Aug 18, 2024 | 3 hrs | 5,993 (31%) | Unnamed event |
| Sep 27, 2024 | 79 hrs | 5,232 (27%) | Tropical Storm Helene |
| Apr 1, 2023 | 30 hrs | 4,356 (22%) | Unnamed event |
| Oct 17, 2025 | 1 hrs | 3,539 (18%) | Unnamed event |
Over the 9 years from 2017 to 2025, Cocke County recorded 437 distinct power outage events, averaging 2.9 hours per event.
The single worst outage on record in Cocke County started April 7, 2021, lasting 2 hours and leaving up to 16,668 customers without power (86% of the county) at its peak.
December has historically been the worst month for outages in Cocke County, with 56 events recorded during that month across the dataset.
Based on this history, Cocke County earns a Reliability Grade of B, placing it in the 63rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Cocke County's outage profile
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Cocke County.
| County | Grade | National percentile |
|---|---|---|
| Claiborne County | B | 63rd |
| Obion County | B | 62nd |
| Campbell County | B | 64th |
| Rhea County | B | 62nd |
| Madison County | B | 65th |
FAQ
How often does power go out in Cocke County?
Between 2017 and 2025, Cocke County recorded 437 outage events, averaging 2.9 hours each.
What is Cocke County's reliability grade?
Cocke County has a Reliability Grade of B, in the 63rd national percentile.
What was the worst power outage in Cocke County?
The worst outage on record started April 7, 2021, lasting 2 hours and affecting up to 16,668 customers.