Martin 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 | 1 hrs | 143,840 (100%) | Unnamed event |
| Sep 11, 2017 | 4 hrs | 143,620 (100%) | Unnamed event |
| Sep 11, 2017 | 65 hrs | 139,740 (97%) | Unnamed event |
| Sep 11, 2017 | 12 hrs | 131,170 (91%) | Unnamed event |
| Sep 9, 2017 | 27 hrs | 59,740 (42%) | Unnamed event |
Over the 12 years from 2014 to 2025, Martin County recorded 1,018 distinct power outage events, averaging 1.7 hours per event.
The single worst outage on record in Martin County started September 11, 2017, lasting 1 hours and leaving up to 143,840 customers without power (100% of the county) at its peak.
August has historically been the worst month for outages in Martin County, with 124 events recorded during that month across the dataset.
Based on this history, Martin County earns a Reliability Grade of D, placing it in the 37th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Martin County's outage profile
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Similar counties in Florida
Counties with the closest reliability grade and national percentile to Martin County.
| County | Grade | National percentile |
|---|---|---|
| Indian River County | D | 36th |
| Okeechobee County | D | 35th |
| Hernando County | D | 40th |
| St. Lucie County | D | 40th |
| Nassau County | C | 40th |
FAQ
How often does power go out in Martin County?
Between 2014 and 2025, Martin County recorded 1,018 outage events, averaging 1.7 hours each.
What is Martin County's reliability grade?
Martin County has a Reliability Grade of D, in the 37th national percentile.
What was the worst power outage in Martin County?
The worst outage on record started September 11, 2017, lasting 1 hours and affecting up to 143,840 customers.