Jefferson County, Missouri
Natural Hazard Risk Assessment — Population: 226,703
90.5NRI
Relatively Moderate
Overall Risk Rating
👥
Population
226,703
🏠
Building Value
$38.6B
💰
Annual Hazard Loss
$114.5M
⚠️
Hazards Tracked
14
Natural Hazard Risk Profile
💨
Very HighStrong Wind
Annual Loss$8.7M
Risk Score98.6
⛰️
Relatively ModerateLandslide
Annual Loss$224K
Risk Score95.9
🌪️
Relatively HighTornado
Annual Loss$15.8M
Risk Score95.1
🧊
Relatively ModerateHail
Annual Loss$3.2M
Risk Score93.9
🏔️
Relatively ModerateEarthquake
Annual Loss$12.5M
Risk Score93.4
🌡️
Relatively ModerateHeat Wave
Annual Loss$4.8M
Risk Score92.1
🌊
Relatively ModerateRiverine Flooding
Annual Loss$58.6M
Risk Score91.4
⚡
Relatively HighLightning
Annual Loss$1.7M
Risk Score91.2
Show all 14 hazards
🥶
Relatively ModerateCold Wave
Annual Loss$8.3M
Risk Score88.9
⛄
Relatively ModerateWinter Weather
Annual Loss$339K
Risk Score84.1
❄️
Relatively ModerateIce Storm
Annual Loss$280K
Risk Score69.4
🔥
Very LowWildfire
Annual Loss$72K
Risk Score53.1
🌀
Very LowHurricane
Annual Loss$11K
Risk Score23.7
☀️
Very LowDrought
Annual Loss$9K
Risk Score22.3
Jefferson County vs. National Average
🎯 Overall Risk
90.5+41.8 vs avg
National avg: 48.7
🔥 Wildfire Risk
53.1+4.4 vs avg
National avg: 48.7
👥 Social Vulnerability
12.2-37.0 vs avg
National avg: 49.2
🛡️ Community Resilience
68.3+19.6 vs avg
National avg: 48.7
Community Profile
Social Vulnerability
12.2
Very LowHigher scores indicate greater social vulnerability to natural hazards.
Community Resilience
68.3
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.