Duval County Power Outage History
2014–2025 · Texas
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 |
|---|---|---|---|
| Feb 15, 2021 | 87 hrs | 6,017 (64%) | Winter Storm Uri |
| May 7, 2023 | 2 hrs | 2,547 (27%) | Unnamed event |
| Jun 15, 2018 | 0 hrs | 2,157 (23%) | Unnamed event |
| Dec 7, 2023 | 4 hrs | 2,139 (23%) | Unnamed event |
| Jan 26, 2023 | 1 hrs | 2,135 (23%) | Unnamed event |
Over the 12 years from 2014 to 2025, Duval County recorded 1,097 distinct power outage events, averaging 3.8 hours per event.
The single worst outage on record in Duval County started February 15, 2021 (Winter Storm Uri), lasting 87 hours and leaving up to 6,017 customers without power (64% of the county) at its peak.
May has historically been the worst month for outages in Duval County, with 118 events recorded during that month across the dataset.
Based on this history, Duval County earns a Reliability Grade of F, placing it in the 17th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Duval County.
| County | Grade | National percentile |
|---|---|---|
| Van Zandt County | F | 17th |
| Anderson County | F | 17th |
| Irion County | F | 17th |
| Mason County | F | 18th |
| Medina County | F | 18th |
FAQ
How often does power go out in Duval County?
Between 2014 and 2025, Duval County recorded 1,097 outage events, averaging 3.8 hours each.
What is Duval County's reliability grade?
Duval County has a Reliability Grade of F, in the 17th national percentile.
What was the worst power outage in Duval County?
The worst outage on record started February 15, 2021 (Winter Storm Uri), lasting 87 hours and affecting up to 6,017 customers.