Charleston County on South Carolina's Low Country coast has one of the longest hurricane histories of any US county, with major storm strikes dating back centuries. The historic peninsula city sits at the confluence of the Ashley and Cooper Rivers, making it extremely vulnerable to storm surge. Dorian caused significant flooding in 2019. The county's low elevation and tidal flooding already affect downtown Charleston regularly.
// Preparedness Recommendations
- Evacuation routes inland should be identified in advance.
- Store at least 72 hours of food and water.
- Elevate critical belongings above flood level.
- Have backup power ready in case of grid failure.
// Recommended Supplies
Essential gear for power outages, severe weather, and emergency situations in your area.
- Emergency Food Supplies
- Water Filtration & Storage
- Backup Generator
- Solar Backup Power
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// Risk Intelligence
| Threat Score | 8 / 10 High Risk |
| Primary Hazard | Hurricane / Storm Surge |
| Secondary Hazard | Flooding |
| FEMA Flood Zone | Zone AE (High Risk) |
| Federally Declared Disasters | 55 |
| Last Major Event | Hurricane Dorian (2019) |
| Event Frequency | Major event every 4–5 years |
// Emergency Operations
| Emergency Mgmt Phone | (843) 202-6570 |
| Emergency Shelters | 32 designated facilities |
| Evacuation Routes | I-26 Northwest, US-17 North, US-17 South, US-78 West |
// County Profile
| County | Charleston County SC |
| State | South Carolina (SC) |
| Population | 415,948 |
| Area | 919 sq miles |
| FEMA Region | Zone AE (High Risk) |
// Major Cities
// Cities in This County
// Other South Carolina Counties
// Nearby Infrastructure Risks
Critical infrastructure facilities within or near this area that could affect civilian safety during emergencies, conflict, or infrastructure failures.
Infrastructure risk data is for emergency preparedness awareness. Facility locations are publicly known. Always follow official emergency guidance.