Natural Disaster Risk in Johnston
South Carolina
5.3out of 10
Risk Summary for Johnston
Average natural disaster risk for the United States. Standard homeowners insurance typically covers common hazards here.
Top Hazards
Hurricane Ice Storm Earthquake
All 18 Hazard Scores
Hurricane 8.0
Ice Storm 7.5
Earthquake 7.2
Drought 6.8
Wildfire 6.3
Lightning 5.7
Tsunami 5.4
Extreme Heat 5.2
Strong Wind 5.1
Volcanic Activity 5.1
Coastal Flooding 4.9
Hail 4.5
Avalanche 4.5
Landslide 4.3
Tornado 4.2
Cold Wave 3.5
Winter Weather 2.4
Riverine Flooding 1.0
How it compares
Johnston 5.3
South Carolina avg. 6.6
US national avg. 4.5
Live Conditions
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🏠 What this means for insurance
Average risk — standard coverage usually sufficient
This area carries average natural disaster risk. A standard homeowners or renters policy should cover common events, but review the exclusions for floods and earthquakes, which are almost never included by default.
This is general information only. Consult a licensed insurance professional for advice specific to your property.
ZIP Codes in Johnston
Other cities in South Carolina
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. City scores inherit county-level FEMA data. For informational purposes only.