Copiah CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Feb 17, 2021 | 18 hrs | 12,611 (71%) | Winter Storm Uri |
| Feb 18, 2021 | 123 hrs | 11,948 (67%) | Winter Storm Uri |
| Apr 23, 2020 | 18 hrs | 11,252 (63%) | Thunderstorm Wind |
| Feb 15, 2016 | 54 hrs | 10,808 (61%) | Tornado |
| Jun 16, 2023 | 106 hrs | 10,036 (57%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Copiah County, Mississippi that day.
Over the 12 years from 2014 to 2025, Copiah County recorded 1,264 distinct power outage events, averaging 3.7 hours per event.
The single worst outage on record in Copiah County started February 17, 2021 (Winter Storm Uri), lasting 18 hours and leaving up to 12,611 customers without power (71% of the county) at its peak.
June has historically been the worst month for outages in Copiah County, with 134 events recorded during that month across the dataset.
Based on this history, Copiah County earns a Reliability Grade of F, placing it in the 4th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Mississippi
Counties with the closest reliability grade and national percentile to Copiah County.
| County | Grade | National percentile |
|---|---|---|
| Warren County | F | 4th |
| Attala County | F | 5th |
| Adams County | F | 5th |
| Franklin County | F | 2nd |
| Amite County | F | 2nd |
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 Copiah County?
Between 2014 and 2025, Copiah County recorded 1,264 outage events, averaging 3.7 hours each.
What is Copiah County's reliability grade?
Copiah County has a Reliability Grade of F, in the 4th national percentile.
What was the worst power outage in Copiah County?
The worst outage on record started February 17, 2021 (Winter Storm Uri), lasting 18 hours and affecting up to 12,611 customers.