St. Lucie County Power Outage History
2014–2025 · Florida
Worse than average — more frequent or longer outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 11, 2017 | 65 hrs | 185,980 (84%) | Hurricane Irma |
| Sep 11, 2017 | 1 hrs | 185,140 (83%) | Hurricane Irma |
| Sep 11, 2017 | 4 hrs | 184,920 (83%) | Hurricane Irma |
| Sep 11, 2017 | 12 hrs | 150,260 (68%) | Hurricane Irma |
| Sep 10, 2017 | 22 hrs | 67,180 (30%) | Hurricane Irma |
Over the 12 years from 2014 to 2025, St. Lucie County recorded 1,619 distinct power outage events, averaging 1.6 hours per event.
The single worst outage on record in St. Lucie County started September 11, 2017 (Hurricane Irma), lasting 65 hours and leaving up to 185,980 customers without power (84% of the county) at its peak.
July has historically been the worst month for outages in St. Lucie County, with 196 events recorded during that month across the dataset.
Based on this history, St. Lucie County earns a Reliability Grade of D, placing it in the 40th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for St. Lucie County's outage profile
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Similar counties in Florida
Counties with the closest reliability grade and national percentile to St. Lucie County.
| County | Grade | National percentile |
|---|---|---|
| Hernando County | D | 40th |
| Nassau County | C | 40th |
| Broward County | C | 41st |
| Santa Rosa County | C | 42nd |
| Martin County | D | 37th |
FAQ
How often does power go out in St. Lucie County?
Between 2014 and 2025, St. Lucie County recorded 1,619 outage events, averaging 1.6 hours each.
What is St. Lucie County's reliability grade?
St. Lucie County has a Reliability Grade of D, in the 40th national percentile.
What was the worst power outage in St. Lucie County?
The worst outage on record started September 11, 2017 (Hurricane Irma), lasting 65 hours and affecting up to 185,980 customers.