Carroll 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 |
|---|---|---|---|
| Sep 27, 2024 | 191 hrs | 16,866 (88%) | Hurricane Helene |
| Oct 1, 2022 | 25 hrs | 10,175 (53%) | Hurricane Ian |
| Feb 12, 2025 | 139 hrs | 9,785 (51%) | Winter Storm |
| Nov 15, 2018 | 82 hrs | 9,308 (49%) | Ice Storm |
| Oct 22, 2019 | 5 hrs | 5,731 (30%) | Unnamed event |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Carroll County, Virginia that day.
Over the 12 years from 2014 to 2025, Carroll County recorded 866 distinct power outage events, averaging 5.0 hours per event.
The single worst outage on record in Carroll County started September 27, 2024 (Hurricane Helene), lasting 191 hours and leaving up to 16,866 customers without power (88% of the county) at its peak.
July has historically been the worst month for outages in Carroll County, with 90 events recorded during that month across the dataset.
Based on this history, Carroll County earns a Reliability Grade of F, placing it in the 3rd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Virginia
Counties with the closest reliability grade and national percentile to Carroll County.
| County | Grade | National percentile |
|---|---|---|
| Scott County | F | 3rd |
| Grayson County | F | 2nd |
| Russell County | F | 4th |
| Cumberland County | F | 4th |
| Floyd 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 Carroll County?
Between 2014 and 2025, Carroll County recorded 866 outage events, averaging 5.0 hours each.
What is Carroll County's reliability grade?
Carroll County has a Reliability Grade of F, in the 3rd national percentile.
What was the worst power outage in Carroll County?
The worst outage on record started September 27, 2024 (Hurricane Helene), lasting 191 hours and affecting up to 16,866 customers.