Sebastian CountyPower Outage History
What this grade means
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 18, 2019 | 56 hrs | 16,877 (16%) | Tornado |
| Jul 14, 2016 | 30 hrs | 15,317 (14%) | Thunderstorm Wind |
| Jul 14, 2023 | 38 hrs | 15,021 (14%) | Excessive Heat |
| May 4, 2021 | 67 hrs | 14,250 (13%) | Hail |
| Jan 24, 2023 | 24 hrs | 12,301 (12%) | Winter Storm |
Was There an Outage on a Specific Date?
Pick a date to see whether a power outage was recorded for Sebastian County, Arkansas that day.
Over the 12 years from 2014 to 2025, Sebastian County recorded 659 distinct power outage events, averaging 3.3 hours per event.
The single worst outage on record in Sebastian County started May 18, 2019 (Tornado), lasting 56 hours and leaving up to 16,877 customers without power (16% of the county) at its peak.
July has historically been the worst month for outages in Sebastian County, with 90 events recorded during that month across the dataset.
Based on this history, Sebastian County earns a Reliability Grade of B, placing it in the 67th percentile nationally for grid reliability (higher percentile = more reliable).
Similar counties in Arkansas
Counties with the closest reliability grade and national percentile to Sebastian County.
| County | Grade | National percentile |
|---|---|---|
| Searcy County | B | 67th |
| Johnson County | B | 64th |
| Cleburne County | B | 62nd |
| Lincoln County | B | 72nd |
| Faulkner County | B | 74th |
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 Sebastian County?
Between 2014 and 2025, Sebastian County recorded 659 outage events, averaging 3.3 hours each.
What is Sebastian County's reliability grade?
Sebastian County has a Reliability Grade of B, in the 67th national percentile.
What was the worst power outage in Sebastian County?
The worst outage on record started May 18, 2019 (Tornado), lasting 56 hours and affecting up to 16,877 customers.