Hancock CountyPower Outage History
2019–2025 · Tennessee
Worse than average — more frequent or longer outages than most counties.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 27, 2023 | <1 hr | 3,542 (81%) | Unnamed event |
| Mar 14, 2024 | <1 hr | 3,530 (81%) | Unnamed event |
| Sep 27, 2024 | 103 hrs | 1,984 (46%) | Tropical Storm Helene |
| Apr 1, 2023 | 16 hrs | 1,742 (40%) | Unnamed event |
| Dec 24, 2022 | 1 hrs | 1,604 (37%) | Winter Storm Elliott |
Over the 7 years from 2019 to 2025, Hancock County recorded 859 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Hancock County started October 27, 2023, lasting less than 1 hour and leaving up to 3,542 customers without power (81% of the county) at its peak.
July has historically been the worst month for outages in Hancock County, with 121 events recorded during that month across the dataset.
Based on this history, Hancock County earns a Reliability Grade of D, placing it in the 36th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Tennessee
Counties with the closest reliability grade and national percentile to Hancock County.
| County | Grade | National percentile |
|---|---|---|
| Fayette County | D | 36th |
| Grundy County | D | 37th |
| Davidson County | D | 35th |
| Moore County | D | 39th |
| Fentress County | D | 33rd |
Most reliable counties in Tennessee
The top 3 counties in Tennessee by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Lincoln County | A | 99th |
| Jackson County | A | 99th |
| Scott County | A | 98th |
Least reliable counties in Tennessee
The bottom 3 counties in Tennessee by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Shelby County | F | 8th |
| Sevier County | D | 20th |
| Stewart County | D | 21st |
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 Hancock County?
Between 2019 and 2025, Hancock County recorded 859 outage events, averaging 2.2 hours each.
What is Hancock County's reliability grade?
Hancock County has a Reliability Grade of D, in the 36th national percentile.
What was the worst power outage in Hancock County?
The worst outage on record started October 27, 2023, lasting less than 1 hour and affecting up to 3,542 customers.