Flagler 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 11, 2017 | 4 hrs | 100,518 (83%) | Hurricane Irma |
| Sep 11, 2017 | <1 hr | 100,408 (83%) | Hurricane Irma |
| Sep 11, 2017 | 65 hrs | 99,298 (82%) | Hurricane Irma |
| Oct 7, 2016 | 39 hrs | 57,341 (47%) | Hurricane Matthew |
| Sep 11, 2017 | 12 hrs | 50,158 (41%) | Hurricane Irma |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Flagler County, Florida that day.
Over the 12 years from 2014 to 2025, Flagler County recorded 674 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Flagler County started September 11, 2017 (Hurricane Irma), lasting 4 hours and leaving up to 100,518 customers without power (83% of the county) at its peak.
June has historically been the worst month for outages in Flagler County, with 81 events recorded during that month across the dataset.
Based on this history, Flagler County earns a Reliability Grade of F, placing it in the 20th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Florida
Counties with the closest reliability grade and national percentile to Flagler County.
| County | Grade | National percentile |
|---|---|---|
| Franklin County | D | 20th |
| Marion County | F | 19th |
| Baker County | D | 21st |
| Putnam County | F | 19th |
| Glades County | D | 21st |
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 Flagler County?
Between 2014 and 2025, Flagler County recorded 674 outage events, averaging 1.9 hours each.
What is Flagler County's reliability grade?
Flagler County has a Reliability Grade of F, in the 20th national percentile.
What was the worst power outage in Flagler County?
The worst outage on record started September 11, 2017 (Hurricane Irma), lasting 4 hours and affecting up to 100,518 customers.