Aransas CountyPower Outage History
What this grade means
Worse than average — more frequent or longer outages than most counties. This county's recorded history shows more frequent outages and/or longer restoration times than most US counties over the same 12-year period. If you live here, it's worth taking backup power more seriously than an average household would.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 14, 2021 | 1 hrs | 16,346 (76%) | Drought |
| Dec 16, 2019 | <1 hr | 15,545 (72%) | Unnamed event |
| Oct 25, 2019 | 3 hrs | 15,436 (72%) | Unnamed event |
| Jun 18, 2018 | <1 hr | 13,979 (65%) | Drought |
| Feb 14, 2021 | 89 hrs | 12,274 (57%) | Winter Storm Uri |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Aransas County, Texas that day.
Over the 12 years from 2014 to 2025, Aransas County recorded 856 distinct power outage events, averaging 2.8 hours per event.
The single worst outage on record in Aransas County started May 14, 2021 (Drought), lasting 1 hours and leaving up to 16,346 customers without power (76% of the county) at its peak.
May has historically been the worst month for outages in Aransas County, with 87 events recorded during that month across the dataset.
Based on this history, Aransas County earns a Reliability Grade of D, placing it in the 29th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Texas
Counties with the closest reliability grade and national percentile to Aransas County.
| County | Grade | National percentile |
|---|---|---|
| Chambers County | D | 29th |
| Glasscock County | D | 29th |
| Calhoun County | D | 28th |
| Henderson County | D | 28th |
| Schleicher County | D | 28th |
Most reliable counties nationally
The top 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | South Dakota | A | 100th |
| Clearwater County | Minnesota | A | 99th |
| Limestone County | Alabama | A | 99th |
Least reliable counties nationally
The bottom 3 counties nationally by reliability grade and percentile.
| County | State | Grade | National percentile |
|---|---|---|---|
| Clay County | West Virginia | F | 0th |
| Lincoln County | West Virginia | F | 0th |
| Cameron Parish | Louisiana | F | 0th |
FAQ
How often does power go out in Aransas County?
Between 2014 and 2025, Aransas County recorded 856 outage events, averaging 2.8 hours each.
What is Aransas County's reliability grade?
Aransas County has a Reliability Grade of D, in the 29th national percentile.
What was the worst power outage in Aransas County?
The worst outage on record started May 14, 2021 (Drought), lasting 1 hours and affecting up to 16,346 customers.