Gilmer 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 |
|---|---|---|---|
| Oct 29, 2020 | 111 hrs | 15,996 (89%) | Tropical Storm Zeta |
| Jul 30, 2024 | 73 hrs | 13,015 (73%) | Thunderstorm Wind |
| Jul 21, 2018 | 45 hrs | 11,796 (66%) | Thunderstorm Wind |
| May 9, 2024 | 65 hrs | 11,654 (65%) | Tornado |
| Apr 12, 2020 | 43 hrs | 8,502 (48%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Gilmer County, Georgia that day.
Over the 12 years from 2014 to 2025, Gilmer County recorded 1,780 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Gilmer County started October 29, 2020 (Tropical Storm Zeta), lasting 111 hours and leaving up to 15,996 customers without power (89% of the county) at its peak.
July has historically been the worst month for outages in Gilmer County, with 223 events recorded during that month across the dataset.
Based on this history, Gilmer County earns a Reliability Grade of F, placing it in the 2nd percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Georgia
Counties with the closest reliability grade and national percentile to Gilmer County.
| County | Grade | National percentile |
|---|---|---|
| Jefferson County | F | 2nd |
| Rabun County | F | 3rd |
| Warren County | F | 3rd |
| Taliaferro County | F | 3rd |
| Glascock County | F | 3rd |
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 Gilmer County?
Between 2014 and 2025, Gilmer County recorded 1,780 outage events, averaging 3.3 hours each.
What is Gilmer County's reliability grade?
Gilmer County has a Reliability Grade of F, in the 2nd national percentile.
What was the worst power outage in Gilmer County?
The worst outage on record started October 29, 2020 (Tropical Storm Zeta), lasting 111 hours and affecting up to 15,996 customers.