Jasper County Power Outage History
2014–2025 · South Carolina
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Sep 27, 2024 | 152 hrs | 15,402 (33%) | Tropical Storm |
| Jul 28, 2021 | 3 hrs | 9,865 (21%) | Unnamed event |
| Jul 27, 2021 | 9 hrs | 7,370 (16%) | Unnamed event |
| Jul 10, 2022 | 1 hrs | 7,289 (15%) | Unnamed event |
| Oct 8, 2016 | 165 hrs | 6,681 (14%) | Tropical Storm |
Over the 12 years from 2014 to 2025, Jasper County recorded 573 distinct power outage events, averaging 2.5 hours per event.
The single worst outage on record in Jasper County started September 27, 2024 (Tropical Storm), lasting 152 hours and leaving up to 15,402 customers without power (33% of the county) at its peak.
June has historically been the worst month for outages in Jasper County, with 85 events recorded during that month across the dataset.
Based on this history, Jasper County earns a Reliability Grade of C, placing it in the 54th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in South Carolina
Counties with the closest reliability grade and national percentile to Jasper County.
| County | Grade | National percentile |
|---|---|---|
| Marlboro County | C | 55th |
| Sumter County | C | 56th |
| Williamsburg County | C | 52nd |
| Clarendon County | C | 58th |
| Laurens County | C | 48th |
FAQ
How often does power go out in Jasper County?
Between 2014 and 2025, Jasper County recorded 573 outage events, averaging 2.5 hours each.
What is Jasper County's reliability grade?
Jasper County has a Reliability Grade of C, in the 54th national percentile.
What was the worst power outage in Jasper County?
The worst outage on record started September 27, 2024 (Tropical Storm), lasting 152 hours and affecting up to 15,402 customers.