Stonewall CountyPower Outage History
2015–2025 · Texas
Better than average — fewer or shorter outages than most counties. This county's outage history is better than the national median: recorded outages are less frequent and/or shorter in duration than a typical US county experienced over the same 12-year period. It isn't in the top tier nationally, but its track record points to lower-than-average outage risk.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| May 6, 2019 | 2 hrs | 878 (66%) | Hail |
| May 1, 2021 | 5 hrs | 853 (64%) | Hail |
| Nov 26, 2025 | 2 hrs | 753 (57%) | Unnamed event |
| Dec 8, 2021 | 2 hrs | 723 (55%) | Unnamed event |
| Nov 19, 2021 | 1 hrs | 721 (54%) | Unnamed event |
Over the 11 years from 2015 to 2025, Stonewall County recorded 174 distinct power outage events, averaging 3.2 hours per event.
The single worst outage on record in Stonewall County started May 6, 2019 (Hail), lasting 2 hours and leaving up to 878 customers without power (66% of the county) at its peak.
June has historically been the worst month for outages in Stonewall County, with 31 events recorded during that month across the dataset.
Based on this history, Stonewall County earns a Reliability Grade of B, placing it in the 69th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Stonewall County's outage profile
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Read our mission →Similar counties in Texas
Counties with the closest reliability grade and national percentile to Stonewall County.
| County | Grade | National percentile |
|---|---|---|
| Cottle County | B | 69th |
| Lamar County | B | 69th |
| Hamilton County | B | 68th |
| Hockley County | B | 70th |
| Burnet County | B | 70th |
Most reliable counties in Texas
The top 3 counties in Texas by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Zavala County | A | 95th |
| Jasper County | A | 94th |
| Fayette County | A | 91st |
Least reliable counties in Texas
The bottom 3 counties in Texas by reliability grade and percentile.
| County | Grade | National percentile |
|---|---|---|
| Trinity County | F | 2nd |
| Orange County | F | 2nd |
| Marion County | F | 4th |
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 Stonewall County?
Between 2015 and 2025, Stonewall County recorded 174 outage events, averaging 3.2 hours each.
What is Stonewall County's reliability grade?
Stonewall County has a Reliability Grade of B, in the 69th national percentile.
What was the worst power outage in Stonewall County?
The worst outage on record started May 6, 2019 (Hail), lasting 2 hours and affecting up to 878 customers.