South Carolina landslide risk
Oconee County has the highest landslide risk in South Carolina, scoring 85.5 out of 100 — rated "Relatively Low" by FEMA's National Risk Index.
| # | County | NRI score | Rating |
NOAA events 2016–2026 |
|---|---|---|---|---|
| 1 | Oconee County | 85.5 | Relatively Low | 0 |
| 2 | Richland County | 85 | Relatively Low | 0 |
| 3 | Aiken County | 80.9 | Relatively Low | 0 |
| 4 | Pickens County | 79.5 | Relatively Low | 0 |
| 5 | Greenville County | 79.2 | Relatively Low | 0 |
| 6 | Lexington County | 75.6 | Relatively Low | 0 |
| 7 | York County | 68.5 | Relatively Low | 0 |
| 8 | Spartanburg County | 67.9 | Relatively Low | 0 |
| 9 | Anderson County | 60 | Very Low | 0 |
| 10 | Kershaw County | 59.8 | Very Low | 0 |
| 11 | Union County | 58.4 | Very Low | 0 |
| 12 | Cherokee County | 55.9 | Very Low | 0 |
| 13 | Chesterfield County | 54.8 | Very Low | 0 |
| 14 | Fairfield County | 54.5 | Very Low | 0 |
| 15 | Lancaster County | 52.4 | Very Low | 0 |
| 16 | Berkeley County | 51.5 | Very Low | 0 |
| 17 | Laurens County | 51.3 | Very Low | 0 |
| 18 | Orangeburg County | 47 | Very Low | 0 |
| 19 | Chester County | 41.4 | Very Low | 0 |
| 20 | Horry County | 40.5 | Very Low | 0 |
| 21 | Sumter County | 40.1 | Very Low | 0 |
| 22 | Florence County | 39.2 | Very Low | 0 |
| 23 | Newberry County | 38.9 | Very Low | 0 |
| 24 | Charleston County | 37.7 | Very Low | 0 |
| 25 | Abbeville County | 37 | Very Low | 0 |
| 26 | Greenwood County | 36.5 | Very Low | 0 |
| 27 | Edgefield County | 34.4 | Very Low | 0 |
| 28 | Calhoun County | 33.4 | Very Low | 0 |
| 29 | McCormick County | 32.5 | Very Low | 0 |
| 30 | Darlington County | 30.3 | Very Low | 0 |
| 31 | Beaufort County | 25.9 | Very Low | 0 |
| 32 | Clarendon County | 22.6 | Very Low | 0 |
| 33 | Williamsburg County | 20 | Very Low | 0 |
| 34 | Colleton County | 19.5 | Very Low | 0 |
| 35 | Barnwell County | 19.1 | Very Low | 0 |
| 36 | Marlboro County | 18.4 | Very Low | 0 |
| 37 | Dillon County | 16.6 | Very Low | 0 |
| 38 | Dorchester County | 14 | Very Low | 0 |
| 39 | Georgetown County | 13.7 | Very Low | 0 |
| 40 | Marion County | 13.3 | Very Low | 0 |
| 41 | Lee County | 12.5 | Very Low | 0 |
| 42 | Saluda County | 10.9 | Very Low | 0 |
| 43 | Bamberg County | 9.9 | Very Low | 0 |
| 44 | Hampton County | 8.8 | Very Low | 0 |
| 45 | Allendale County | 8.2 | Very Low | 0 |
| 46 | Jasper County | 6.9 | Very Low | 0 |
Source: FEMA National Risk Index v1.20.0, December 2025. Scores are 0–100 percentile rankings among all US counties. See the methodology page for definitions. Download the full CSV for all counties.
Landslide risk nationally:
Other hazard risks in South Carolina:
Frequently asked questions
What is the highest landslide risk county in South Carolina?
Oconee County, SC has the highest landslide risk in South Carolina, with a FEMA National Risk Index score of 85.5 out of 100 (rated "Relatively Low").
What causes landslide risk in South Carolina?
Landslide risk covers expected losses from hillslope failures, rockfalls, and debris flows triggered by heavy rainfall, snowmelt, wildfire, or earthquakes. High scores concentrate in the Pacific Northwest, California coastal ranges, Appalachians, and Rocky Mountain foothills, where steep terrain combines with intense precipitation or seismic activity.