Houston CountyPower Outage History
What this grade means
Bottom 20% least reliable nationally — frequent and/or long outages. This county ranks in the least reliable fifth of all US counties in our dataset: some combination of frequent outages, long restoration times, or customers affected puts it near the bottom nationally. Backup power is worth prioritizing here rather than treating it as optional.
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Mar 22, 2022 | 69 hrs | 9,548 (56%) | Tornado |
| Jan 10, 2021 | 76 hrs | 9,214 (54%) | Heavy Snow |
| Oct 31, 2020 | 7 hrs | 6,861 (40%) | Unnamed event |
| Feb 15, 2021 | 71 hrs | 6,087 (36%) | Winter Storm Uri |
| Apr 27, 2023 | 36 hrs | 5,953 (35%) | Thunderstorm Wind |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Houston County, Texas that day.
Over the 12 years from 2014 to 2025, Houston County recorded 944 distinct power outage events, averaging 3.1 hours per event.
The single worst outage on record in Houston County started March 22, 2022 (Tornado), lasting 69 hours and leaving up to 9,548 customers without power (56% of the county) at its peak.
May has historically been the worst month for outages in Houston County, with 118 events recorded during that month across the dataset.
Based on this history, Houston County earns a Reliability Grade of F, placing it in the 13th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Texas
Counties with the closest reliability grade and national percentile to Houston County.
| County | Grade | National percentile |
|---|---|---|
| Limestone County | F | 13th |
| Panola County | F | 14th |
| Cherokee County | F | 13th |
| Dimmit County | F | 14th |
| Galveston County | F | 13th |
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 Houston County?
Between 2014 and 2025, Houston County recorded 944 outage events, averaging 3.1 hours each.
What is Houston County's reliability grade?
Houston County has a Reliability Grade of F, in the 13th national percentile.
What was the worst power outage in Houston County?
The worst outage on record started March 22, 2022 (Tornado), lasting 69 hours and affecting up to 9,548 customers.