Galveston 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 |
|---|---|---|---|
| Jul 8, 2024 | 253 hrs | 164,920 (79%) | Unnamed event |
| Feb 15, 2021 | 83 hrs | 164,606 (79%) | Winter Storm Uri |
| Sep 13, 2021 | 121 hrs | 57,142 (27%) | Tropical Storm |
| Jun 8, 2023 | 34 hrs | 30,412 (15%) | Thunderstorm Wind |
| Jun 22, 2023 | 73 hrs | 28,418 (14%) | Excessive Heat |
Over the 12 years from 2014 to 2025, Galveston County recorded 2,911 distinct power outage events, averaging 2.4 hours per event.
The single worst outage on record in Galveston County started July 8, 2024, lasting 253 hours and leaving up to 164,920 customers without power (79% of the county) at its peak.
June has historically been the worst month for outages in Galveston County, with 309 events recorded during that month across the dataset.
Based on this history, Galveston County earns a Reliability Grade of F, placing it in the 13th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Galveston County's outage profile
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Similar counties in Texas
Counties with the closest reliability grade and national percentile to Galveston County.
| County | Grade | National percentile |
|---|---|---|
| Harrison County | F | 13th |
| Hardin County | F | 12th |
| Falls County | F | 12th |
| Cherokee County | F | 13th |
| Liberty County | F | 12th |
FAQ
How often does power go out in Galveston County?
Between 2014 and 2025, Galveston County recorded 2,911 outage events, averaging 2.4 hours each.
What is Galveston County's reliability grade?
Galveston County has a Reliability Grade of F, in the 13th national percentile.
What was the worst power outage in Galveston County?
The worst outage on record started July 8, 2024, lasting 253 hours and affecting up to 164,920 customers.