Natural Disaster Risk in Charleston County
South Carolina
7.7out of 10
Risk Summary for Charleston County
Above-average natural disaster risk. Several hazards pose meaningful threats. Ensure adequate home and property insurance.
Top Hazards
Coastal Flooding Hurricane Earthquake
All 18 Hazard Scores
Hurricane 10.0
Coastal Flooding 10.0
Earthquake 9.9
Wildfire 9.5
Ice Storm 9.5
Lightning 9.3
Cold Wave 8.9
Winter Weather 8.6
Strong Wind 8.5
Extreme Heat 8.5
Tornado 7.5
Hail 6.6
Tsunami 5.4
Volcanic Activity 5.1
Landslide 4.5
Avalanche 4.5
Drought 4.3
Riverine Flooding 1.0
How it compares
Charleston County 7.7
South Carolina avg. 6.6
US national avg. 4.5
Live Conditions
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🏠 What this means for insurance
Above-average risk — check your policy limits
Standard homeowners insurance may not fully cover all hazards rated highly in this area. Verify that your policy includes adequate coverage for the top local hazards, and ask your insurer about specific endorsements or separate policies (e.g., flood, earthquake).
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Cities in Charleston County
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. For informational purposes only.