Counties with the Highest Natural Hazard Risk in South Carolina
The top 25 of 46 South Carolina counties on GIS Map, ranked by FEMA National Risk Index score (0-100, national percentile).
| # | County | Risk Index score |
|---|---|---|
| 1 | Charleston County | 98.6 |
| 2 | Horry County | 98.2 |
| 3 | Beaufort County | 97.1 |
| 4 | Berkeley County | 94.8 |
| 5 | Greenville County | 94.0 |
| 6 | Dorchester County | 93.7 |
| 7 | Richland County | 93.1 |
| 8 | Georgetown County | 92.5 |
| 9 | Lexington County | 90.9 |
| 10 | Spartanburg County | 90.6 |
| 11 | Florence County | 89.6 |
| 12 | York County | 88.7 |
| 13 | Orangeburg County | 87.7 |
| 14 | Anderson County | 87.2 |
| 15 | Oconee County | 85.6 |
| 16 | Colleton County | 85.5 |
| 17 | Dillon County | 84.3 |
| 18 | Aiken County | 84.2 |
| 19 | Williamsburg County | 82.1 |
| 20 | Sumter County | 81.7 |
| 21 | Marion County | 80.7 |
| 22 | Lancaster County | 79.4 |
| 23 | Jasper County | 78.6 |
| 24 | Pickens County | 77.6 |
| 25 | Clarendon County | 76.5 |
Source: FEMA National Risk Index (December 2025). All counties with data are ranked. Estimates carry margins of error.
Citing this page: GIS Map, “Counties with the Highest Natural Hazard Risk in South Carolina”, https://gismap.land/rankings/south-carolina/highest-risk-counties. Figures from FEMA National Risk Index (December 2025).
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