Union County Power Outage History
2014–2025 · Arkansas
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 |
|---|---|---|---|
| Oct 6, 2015 | 2 hrs | 11,174 (48%) | Drought |
| Jul 15, 2016 | 28 hrs | 8,857 (38%) | Heat |
| Aug 27, 2020 | 12 hrs | 8,280 (35%) | Hurricane Laura |
| Aug 28, 2020 | 96 hrs | 7,303 (31%) | Hurricane Laura |
| Apr 18, 2015 | 3 hrs | 6,265 (27%) | Unnamed event |
Over the 12 years from 2014 to 2025, Union County recorded 1,309 distinct power outage events, averaging 3.6 hours per event.
The single worst outage on record in Union County started October 6, 2015 (Drought), lasting 2 hours and leaving up to 11,174 customers without power (48% of the county) at its peak.
April has historically been the worst month for outages in Union County, with 157 events recorded during that month across the dataset.
Based on this history, Union County earns a Reliability Grade of F, placing it in the 14th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Arkansas
Counties with the closest reliability grade and national percentile to Union County.
| County | Grade | National percentile |
|---|---|---|
| Grant County | F | 14th |
| Columbia County | F | 13th |
| Yell County | F | 13th |
| St. Francis County | F | 16th |
| Little River County | F | 12th |
FAQ
How often does power go out in Union County?
Between 2014 and 2025, Union County recorded 1,309 outage events, averaging 3.6 hours each.
What is Union County's reliability grade?
Union County has a Reliability Grade of F, in the 14th national percentile.
What was the worst power outage in Union County?
The worst outage on record started October 6, 2015 (Drought), lasting 2 hours and affecting up to 11,174 customers.