Horry County Power Outage History
2014–2025 · South Carolina
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 |
|---|---|---|---|
| Oct 8, 2016 | 195 hrs | 183,359 (29%) | Hurricane Matthew |
| Sep 30, 2022 | 20 hrs | 88,018 (14%) | Hurricane Ian |
| Oct 7, 2015 | 0 hrs | 49,109 (8%) | Hurricane Joaquin |
| Sep 15, 2018 | 64 hrs | 46,356 (7%) | Hurricane Florence |
| Feb 5, 2016 | 2 hrs | 45,469 (7%) | Unnamed event |
Over the 12 years from 2014 to 2025, Horry County recorded 1,296 distinct power outage events, averaging 1.9 hours per event.
The single worst outage on record in Horry County started October 8, 2016 (Hurricane Matthew), lasting 195 hours and leaving up to 183,359 customers without power (29% of the county) at its peak.
August has historically been the worst month for outages in Horry County, with 152 events recorded during that month across the dataset.
Based on this history, Horry County earns a Reliability Grade of B, placing it in the 76th percentile nationally for grid reliability (higher percentile = more reliable).
Sized for Horry County's outage profile
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Outage-prep kit
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Similar counties in South Carolina
Counties with the closest reliability grade and national percentile to Horry County.
| County | Grade | National percentile |
|---|---|---|
| Richland County | B | 76th |
| Dorchester County | B | 74th |
| Union County | B | 80th |
| Orangeburg County | B | 80th |
| Georgetown County | B | 72nd |
FAQ
How often does power go out in Horry County?
Between 2014 and 2025, Horry County recorded 1,296 outage events, averaging 1.9 hours each.
What is Horry County's reliability grade?
Horry County has a Reliability Grade of B, in the 76th national percentile.
What was the worst power outage in Horry County?
The worst outage on record started October 8, 2016 (Hurricane Matthew), lasting 195 hours and affecting up to 183,359 customers.