St. Clair County, Illinois
Natural Hazard Risk Assessment — Population: 257,200
94.9NRI
Relatively High
Overall Risk Rating
👥
Population
257,200
🏠
Building Value
$61.9B
💰
Annual Hazard Loss
$174.6M
⚠️
Hazards Tracked
14
Natural Hazard Risk Profile
🌡️
Relatively HighHeat Wave
Annual Loss$15.1M
Risk Score98.1
🏔️
Relatively ModerateEarthquake
Annual Loss$50.8M
Risk Score98.0
🧊
Relatively HighHail
Annual Loss$5.1M
Risk Score97.6
🥶
Relatively HighCold Wave
Annual Loss$14.8M
Risk Score96.4
🌪️
Relatively HighTornado
Annual Loss$13.0M
Risk Score95.5
🌊
Relatively HighRiverine Flooding
Annual Loss$71.7M
Risk Score94.5
⚡
Relatively HighLightning
Annual Loss$1.6M
Risk Score93.7
❄️
Relatively HighIce Storm
Annual Loss$1.0M
Risk Score91.0
Show all 14 hazards
⛄
Relatively HighWinter Weather
Annual Loss$333K
Risk Score87.2
⛰️
Relatively LowLandslide
Annual Loss$28K
Risk Score84.3
☀️
Relatively LowDrought
Annual Loss$314K
Risk Score61.4
💨
Relatively ModerateStrong Wind
Annual Loss$627K
Risk Score54.0
🌀
Very LowHurricane
Annual Loss$21K
Risk Score34.9
🔥
Very LowWildfire
Annual Loss$5K
Risk Score15.1
St. Clair County vs. National Average
🎯 Overall Risk
94.9+46.2 vs avg
National avg: 48.7
🔥 Wildfire Risk
15.1-33.6 vs avg
National avg: 48.7
👥 Social Vulnerability
37.8-11.4 vs avg
National avg: 49.2
🛡️ Community Resilience
74.9+26.2 vs avg
National avg: 48.7
Community Profile
Social Vulnerability
37.8
Relatively LowHigher scores indicate greater social vulnerability to natural hazards.
Community Resilience
74.9
Relatively HighHigher scores indicate better ability to prepare for, adapt to, and recover from hazards.
Frequently Asked Questions
Data from FEMA National Risk Index. For informational purposes only. Consult local authorities for property-specific risk.