Nassau County, New York
Natural Hazard Risk Assessment — Population: 1,395,584
97.1NRI
Relatively High
Overall Risk Rating
👥
Population
1,395,584
🏠
Building Value
$303.5B
💰
Annual Hazard Loss
$298.6M
⚠️
Hazards Tracked
16
Natural Hazard Risk Profile
⛄
Very HighWinter Weather
Annual Loss$2.0M
Risk Score98.9
❄️
Very HighIce Storm
Annual Loss$3.9M
Risk Score98.7
🏖️
Very HighCoastal Flooding
Annual Loss$24.3M
Risk Score98.4
🌊
Relatively HighRiverine Flooding
Annual Loss$183.9M
Risk Score98.2
⚡
Very HighLightning
Annual Loss$3.0M
Risk Score97.3
💨
Relatively HighStrong Wind
Annual Loss$4.5M
Risk Score97.1
🏔️
Relatively ModerateEarthquake
Annual Loss$28.0M
Risk Score96.5
🌡️
Relatively ModerateHeat Wave
Annual Loss$8.3M
Risk Score96.0
Show all 16 hazards
🌀
Relatively HighHurricane
Annual Loss$27.1M
Risk Score95.4
🥶
Relatively HighCold Wave
Annual Loss$9.9M
Risk Score92.7
🌪️
Relatively ModerateTornado
Annual Loss$3.7M
Risk Score76.2
⛰️
Relatively LowLandslide
Annual Loss$11K
Risk Score75.9
🔥
Very LowWildfire
Annual Loss$36K
Risk Score43.6
🧊
Very LowHail
Annual Loss$96K
Risk Score23.4
☀️
Very LowDrought
Annual Loss$2K
Risk Score17.5
🌊
Insufficient DataTsunami
Annual Loss$0
Risk Score0.0
Nassau County vs. National Average
🎯 Overall Risk
97.1+48.4 vs avg
National avg: 48.7
🔥 Wildfire Risk
43.6-5.1 vs avg
National avg: 48.7
👥 Social Vulnerability
25.9-23.3 vs avg
National avg: 49.2
🛡️ Community Resilience
97.0+48.3 vs avg
National avg: 48.7
Community Profile
Social Vulnerability
25.9
Relatively LowHigher scores indicate greater social vulnerability to natural hazards.
Community Resilience
97.0
Very 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.