Chatham 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 7, 2016 | 25 hrs | 141,489 (87%) | Storm Surge/Tide |
| Sep 27, 2024 | 180 hrs | 118,846 (73%) | Tropical Storm |
| Oct 8, 2016 | 153 hrs | 114,943 (71%) | Storm Surge/Tide |
| Sep 11, 2017 | 126 hrs | 76,043 (47%) | Tropical Storm |
| Sep 2, 2016 | 61 hrs | 47,986 (29%) | Hurricane Center |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Chatham County, Georgia that day.
Over the 12 years from 2014 to 2025, Chatham County recorded 2,047 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Chatham County started October 7, 2016 (Storm Surge/Tide), lasting 25 hours and leaving up to 141,489 customers without power (87% of the county) at its peak.
July has historically been the worst month for outages in Chatham County, with 261 events recorded during that month across the dataset.
Based on this history, Chatham County earns a Reliability Grade of F, placing it in the 7th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Georgia
Counties with the closest reliability grade and national percentile to Chatham County.
| County | Grade | National percentile |
|---|---|---|
| Wayne County | F | 7th |
| Lumpkin County | F | 7th |
| Pickens County | F | 8th |
| White County | F | 8th |
| Hancock County | F | 8th |
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 Chatham County?
Between 2014 and 2025, Chatham County recorded 2,047 outage events, averaging 2.4 hours each.
What is Chatham County's reliability grade?
Chatham County has a Reliability Grade of F, in the 7th national percentile.
What was the worst power outage in Chatham County?
The worst outage on record started October 7, 2016 (Storm Surge/Tide), lasting 25 hours and affecting up to 141,489 customers.