Compare 10 cities using FEMA's relative hurricane scores and annualized frequency for the county-equivalent areas shown.
Highest relative score
99.6/100
Charleston County
Covered cities: Charleston, Mount Pleasant, and North Charleston
Lowest relative score in this set
78.9/100
Spartanburg County
Covered cities: Spartanburg
These are relative FEMA scores for county-equivalent areas. They are not annual probabilities or property-level findings.
Cities sharing a FEMA area are grouped together and receive the same score.
| Rank | FEMA area and cities | Rating | Score | Annualized frequency |
|---|---|---|---|---|
| #1 | Charleston County | Very High | 99.6/100 | 0.362 per year |
| #2 | Horry County | Very High | 99.6/100 | 0.289 per year |
| #3 | Florence County | Relatively Moderate | 95.6/100 | 0.252 per year |
| #4 | Richland County | Relatively Moderate | 93.1/100 | 0.193 per year |
| #5 | Greenville County | Relatively Low | 83.0/100 | 0.044 per year |
| #6 | York County | Relatively Low | 82.1/100 | 0.082 per year |
| #7 | Spartanburg County | Relatively Low | 78.9/100 | 0.049 per year |
Occurrence thresholds vary by hazard. The FEMA methodology defines the value for each hazard.
Charleston, Mount Pleasant, and North Charleston use FEMA data for Charleston County, which has the highest relative hurricane score in this covered set at 99.6/100. Cities sharing the same FEMA area share the same score.
Spartanburg County has the lowest score in this covered set at 78.9/100. This is a relative FEMA comparison, not a declaration that every property there is safe.
No. The city links provide geographic navigation, while the scores and frequencies cover the FEMA county-equivalent areas shown in the table. Address-level conditions require local maps and property details.
No. The relative score compares FEMA areas on a 0–100 scale. Annualized frequency appears separately with hazard-specific units.
Source: FEMA National Risk Index v1.19.0, released March 2023. Hazard data covers FEMA county-equivalent areas.