Perry CountyPower Outage History
2014–2025 · Mississippi
Bottom 20% least reliable nationally — frequent and/or long outages.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Oct 29, 2020 | 119 hrs | 4,597 (77%) | Hurricane Zeta |
| Apr 20, 2020 | 16 hrs | 2,984 (50%) | Tornado |
| Mar 15, 2025 | 12 hrs | 2,340 (39%) | Unnamed event |
| Jul 4, 2024 | <1 hr | 2,240 (38%) | Unnamed event |
| Aug 30, 2021 | 10 hrs | 2,233 (38%) | Unnamed event |
Over the 12 years from 2014 to 2025, Perry County recorded 1,029 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Perry County started October 29, 2020 (Hurricane Zeta), lasting 119 hours and leaving up to 4,597 customers without power (77% of the county) at its peak.
July has historically been the worst month for outages in Perry County, with 114 events recorded during that month across the dataset.
Based on this history, Perry County earns a Reliability Grade of F, placing it in the 18th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Mississippi
Counties with the closest reliability grade and national percentile to Perry County.
| County | Grade | National percentile |
|---|---|---|
| Choctaw County | F | 20th |
| Scott County | F | 15th |
| Jasper County | D | 21st |
| Humphreys County | F | 15th |
| Sharkey County | F | 13th |
Most reliable counties in Mississippi
The top 3 counties in Mississippi by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Chickasaw County | A | 99th |
| Alcorn County | A | 98th |
| Monroe County | A | 98th |
Least reliable counties in Mississippi
The bottom 3 counties in Mississippi by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Wilkinson County | F | 0th |
| Claiborne County | F | 0th |
| Jefferson County | F | 1st |
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 Perry County?
Between 2014 and 2025, Perry County recorded 1,029 outage events, averaging 2.7 hours each.
What is Perry County's reliability grade?
Perry County has a Reliability Grade of F, in the 18th national percentile.
What was the worst power outage in Perry County?
The worst outage on record started October 29, 2020 (Hurricane Zeta), lasting 119 hours and affecting up to 4,597 customers.