1,759
Recorded events
46
Counties affected
27
Direct deaths
$174.5M
Property damage
South Carolina flash flood history: 1,759 recorded events across 46 counties between 1996 and 2025.
Decade by decade
South Carolina flash flood history by decade
The 2010s are the busiest decade on record with 738 reported flash flood events across South Carolina. Earlier decades are thinner because systematic reporting for this hazard expanded over time, not because the weather was calmer.
County ranking
Counties with the most flash flood events in South Carolina
| Rank | County | Events | Deaths | Damage | Span |
|---|---|---|---|---|---|
| #1 | Charleston County | 296 | 1 | $20.2M | 1996–2025 |
| #2 | Richland County | 238 | 9 | $30.8M | 1996–2025 |
| #3 | Horry County | 105 | 4 | $12.1M | 1996–2025 |
| #4 | Greenville County | 83 | 2 | $8.7M | 1996–2024 |
| #5 | Lexington County | 77 | 0 | $17.4M | 1996–2025 |
| #6 | Berkeley County | 73 | 1 | $4.8M | 1996–2025 |
| #7 | Orangeburg County | 66 | 0 | $22.4M | 1996–2024 |
| #8 | Dorchester County | 62 | 0 | $7.1M | 1996–2025 |
| #9 | Lancaster County | 62 | 0 | $673K | 2003–2025 |
| #10 | Georgetown County | 46 | 1 | $2.8M | 1996–2025 |
| #11 | Spartanburg County | 44 | 2 | $6.8M | 1997–2024 |
| #12 | Anderson County | 43 | 1 | $2.0M | 1996–2024 |
| #13 | Beaufort County | 42 | 0 | $16K | 1996–2025 |
| #14 | Chesterfield County | 38 | 0 | $88K | 1996–2024 |
| #15 | Colleton County | 33 | 0 | $2.3M | 1998–2025 |
| #16 | Sumter County | 32 | 0 | $127K | 2001–2025 |
| #17 | Florence County | 31 | 2 | $3.7M | 1996–2024 |
| #18 | Pickens County | 31 | 2 | $2.9M | 1997–2024 |
| #19 | York County | 26 | 0 | $539K | 1997–2025 |
| #20 | Marion County | 23 | 0 | $1.8M | 1998–2024 |
| #21 | Oconee County | 22 | 0 | $491K | 1997–2024 |
| #22 | Jasper County | 21 | 0 | $135K | 1998–2024 |
| #23 | Aiken County | 20 | 0 | $398K | 1996–2025 |
| #24 | Clarendon County | 19 | 0 | $11.4M | 1999–2024 |
| #25 | Laurens County | 18 | 0 | $169K | 1997–2025 |
Significant events
Deadliest flash flood events in South Carolina
| Date | County | Scale | Deaths | Injuries |
|---|---|---|---|---|
| Sep 15, 2018 | Horry County | — | 2 | 0 |
| Oct 4, 2015 | Richland County | — | 2 | 20 |
| Oct 7, 2015 | Richland County | — | 2 | 5 |
| Aug 10, 2014 | Greenville County | — | 2 | 0 |
| Oct 4, 2015 | Richland County | — | 1 | 1 |
| Mar 20, 2001 | Horry County | — | 1 | 0 |
| Oct 4, 2015 | Richland County | — | 1 | 1 |
| Sep 27, 2024 | Anderson County | — | 1 | 0 |
| Sep 22, 2000 | Berkeley County | — | 1 | 0 |
| Sep 16, 2018 | Horry County | — | 1 | 0 |