Johnson County Power Outage History
2016–2025 · Arkansas
Better than average — fewer or shorter outages than most counties. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Jun 11, 2019 | 4 hrs | 6,008 (32%) | Unnamed event |
| May 1, 2019 | 30 hrs | 3,506 (18%) | Unnamed event |
| May 20, 2024 | 2 hrs | 3,161 (17%) | Unnamed event |
| May 18, 2019 | 26 hrs | 2,831 (15%) | Unnamed event |
| Oct 25, 2025 | 3 hrs | 2,480 (13%) | Unnamed event |
Over the 10 years from 2016 to 2025, Johnson County recorded 313 distinct power outage events, averaging 3.4 hours per event.
The single worst outage on record in Johnson County started June 11, 2019, lasting 4 hours and leaving up to 6,008 customers without power (32% of the county) at its peak.
May has historically been the worst month for outages in Johnson County, with 36 events recorded during that month across the dataset.
Based on this history, Johnson County earns a Reliability Grade of B, placing it in the 64th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Johnson County's outage profile
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Outage-prep kit
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Similar counties in Arkansas
Counties with the closest reliability grade and national percentile to Johnson County.
| County | Grade | National percentile |
|---|---|---|
| Cleburne County | B | 62nd |
| Sebastian County | B | 67th |
| Searcy County | B | 67th |
| Crawford County | B | 60th |
| Lincoln County | B | 72nd |
FAQ
How often does power go out in Johnson County?
Between 2016 and 2025, Johnson County recorded 313 outage events, averaging 3.4 hours each.
What is Johnson County's reliability grade?
Johnson County has a Reliability Grade of B, in the 64th national percentile.
What was the worst power outage in Johnson County?
The worst outage on record started June 11, 2019, lasting 4 hours and affecting up to 6,008 customers.