Mobile County Power Outage History
2017–2025 · Alabama
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 15, 2020 | 134 hrs | 143,114 (68%) | Hurricane Sally |
| Oct 29, 2020 | 1 hrs | 114,468 (54%) | Hurricane Zeta |
| Oct 29, 2020 | 107 hrs | 114,158 (54%) | Hurricane Zeta |
| Oct 29, 2020 | 1 hrs | 104,233 (50%) | Hurricane Zeta |
| Oct 29, 2020 | 1 hrs | 103,284 (49%) | Hurricane Zeta |
Over the 9 years from 2017 to 2025, Mobile County recorded 2,767 distinct power outage events, averaging 2.2 hours per event.
The single worst outage on record in Mobile County started September 15, 2020 (Hurricane Sally), lasting 134 hours and leaving up to 143,114 customers without power (68% of the county) at its peak.
July has historically been the worst month for outages in Mobile County, with 308 events recorded during that month across the dataset.
Based on this history, Mobile County earns a Reliability Grade of D, placing it in the 25th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Alabama
Counties with the closest reliability grade and national percentile to Mobile County.
| County | Grade | National percentile |
|---|---|---|
| Pickens County | D | 25th |
| Winston County | D | 24th |
| Crenshaw County | D | 25th |
| Baldwin County | D | 26th |
| Marion County | D | 26th |
FAQ
How often does power go out in Mobile County?
Between 2017 and 2025, Mobile County recorded 2,767 outage events, averaging 2.2 hours each.
What is Mobile County's reliability grade?
Mobile County has a Reliability Grade of D, in the 25th national percentile.
What was the worst power outage in Mobile County?
The worst outage on record started September 15, 2020 (Hurricane Sally), lasting 134 hours and affecting up to 143,114 customers.