St. Bernard Parish Power Outage History
2014–2025 · Louisiana
Bottom 20% least reliable nationally — frequent and/or long outages. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 30, 2021 | 189 hrs | 20,256 (87%) | Tropical Storm Ida |
| Aug 29, 2021 | 18 hrs | 20,256 (87%) | Tropical Storm Ida |
| Aug 30, 2021 | 1 hrs | 20,256 (87%) | Tropical Storm Ida |
| Oct 28, 2020 | 28 hrs | 20,067 (87%) | Hurricane Zeta |
| Oct 30, 2020 | 11 hrs | 19,882 (86%) | Hurricane Zeta |
Over the 12 years from 2014 to 2025, St. Bernard Parish recorded 518 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in St. Bernard Parish started August 30, 2021 (Tropical Storm Ida), lasting 189 hours and leaving up to 20,256 customers without power (87% of the county) at its peak.
July has historically been the worst month for outages in St. Bernard Parish, with 65 events recorded during that month across the dataset.
Based on this history, St. Bernard Parish earns a Reliability Grade of F, placing it in the 3rd percentile nationally for grid reliability (higher percentile = more reliable).
Sized for St. Bernard Parish's outage profile
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Similar counties in Louisiana
Counties with the closest reliability grade and national percentile to St. Bernard Parish.
| County | Grade | National percentile |
|---|---|---|
| Orleans Parish | F | 3rd |
| Assumption Parish | F | 3rd |
| Union Parish | F | 3rd |
| Vernon Parish | F | 2nd |
| Ascension Parish | F | 2nd |
FAQ
How often does power go out in St. Bernard Parish?
Between 2014 and 2025, St. Bernard Parish recorded 518 outage events, averaging 3.3 hours each.
What is St. Bernard Parish's reliability grade?
St. Bernard Parish has a Reliability Grade of F, in the 3rd national percentile.
What was the worst power outage in St. Bernard Parish?
The worst outage on record started August 30, 2021 (Tropical Storm Ida), lasting 189 hours and affecting up to 20,256 customers.