PowerOutageHistory
FReliability Grade

Irion CountyPower Outage History

20142025 · Texas

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.

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Reliability Rank
Fuller bar = more reliable
Nationwide17th pct
In Texas#207 of 251
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Total events
578
Avg duration
4.2 hrs
Longest outage
113 hrs
Customers served
2,566
Utility customers in county

Outages by year

Outages by month (seasonality)

Worst outage events on record

DateDurationCustomers affectedCause
Feb 13, 2021113 hrs2,414 (94%)Winter Storm Uri
Jan 8, 20204 hrs1,410 (55%)Unnamed event
Dec 19, 20141 hrs1,101 (43%)Unnamed event
Jan 3, 20158 hrs1,099 (43%)Winter Storm
May 20, 202010 hrs891 (35%)Unnamed event

Over the 12 years from 2014 to 2025, Irion County recorded 578 distinct power outage events, averaging 4.2 hours per event.

The single worst outage on record in Irion County started February 13, 2021 (Winter Storm Uri), lasting 113 hours and leaving up to 2,414 customers without power (94% of the county) at its peak.

May has historically been the worst month for outages in Irion County, with 87 events recorded during that month across the dataset.

Based on this history, Irion County earns a Reliability Grade of F, placing it in the 17th percentile nationally for grid reliability (higher percentile = more reliable).

Sized for Irion County's outage profile

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Similar counties in Texas

Counties with the closest reliability grade and national percentile to Irion County.

CountyGradeNational percentile
Anderson CountyF17th
Willacy CountyF16th
Van Zandt CountyF17th
Martin CountyF16th
Duval CountyF17th

Most reliable counties in Texas

The top 3 counties in Texas by reliability grade and percentile.

CountyGradeNational percentile
Zavala CountyA95th
Jasper CountyA94th
Fayette CountyA91st

Least reliable counties in Texas

The bottom 3 counties in Texas by reliability grade and percentile.

CountyGradeNational percentile
Trinity CountyF2nd
Orange CountyF2nd
Marion CountyF4th

Most reliable counties nationally

The top 3 counties nationally by reliability grade and percentile.

CountyStateGradeNational percentile
Clay CountySouth DakotaA100th
Clearwater CountyMinnesotaA99th
Limestone CountyAlabamaA99th

Least reliable counties nationally

The bottom 3 counties nationally by reliability grade and percentile.

FAQ

How often does power go out in Irion County?

Between 2014 and 2025, Irion County recorded 578 outage events, averaging 4.2 hours each.

What is Irion County's reliability grade?

Irion County has a Reliability Grade of F, in the 17th national percentile.

What was the worst power outage in Irion County?

The worst outage on record started February 13, 2021 (Winter Storm Uri), lasting 113 hours and affecting up to 2,414 customers.

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Data: ORNL EAGLE-I Recorded Electricity Outages (2014–2025), CC BY 4.0. Storm names: NOAA Storm Events Database. Last data refresh: 2025. See methodology.