Irwin CountyPower Outage History
2015–2025 · Georgia
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 |
|---|---|---|---|
| Sep 11, 2017 | 108 hrs | 4,801 (84%) | Hurricane Irma |
| Oct 10, 2018 | 96 hrs | 4,715 (83%) | Hurricane Michael |
| Aug 30, 2023 | 31 hrs | 3,501 (61%) | Hurricane Idalia |
| Jul 23, 2018 | 4 hrs | 2,571 (45%) | Thunderstorm Wind |
| Jul 23, 2018 | 10 hrs | 2,451 (43%) | Thunderstorm Wind |
Over the 11 years from 2015 to 2025, Irwin County recorded 668 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Irwin County started September 11, 2017 (Hurricane Irma), lasting 108 hours and leaving up to 4,801 customers without power (84% of the county) at its peak.
June has historically been the worst month for outages in Irwin County, with 87 events recorded during that month across the dataset.
Based on this history, Irwin County earns a Reliability Grade of F, placing it in the 16th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Georgia
Counties with the closest reliability grade and national percentile to Irwin County.
| County | Grade | National percentile |
|---|---|---|
| Randolph County | F | 16th |
| Macon County | F | 16th |
| Terrell County | F | 15th |
| Camden County | F | 15th |
| Brantley County | F | 17th |
Most reliable counties in Georgia
The top 3 counties in Georgia by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Screven County | A | 94th |
| Chattahoochee County | A | 90th |
| Houston County | A | 89th |
Least reliable counties in Georgia
The bottom 3 counties in Georgia by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Gilmer County | F | 2nd |
| Jefferson County | F | 2nd |
| Rabun 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 Irwin County?
Between 2015 and 2025, Irwin County recorded 668 outage events, averaging 2.4 hours each.
What is Irwin County's reliability grade?
Irwin County has a Reliability Grade of F, in the 16th national percentile.
What was the worst power outage in Irwin County?
The worst outage on record started September 11, 2017 (Hurricane Irma), lasting 108 hours and affecting up to 4,801 customers.