St. Tammany County, Louisiana
Natural Hazard Risk Assessment — Population: 263,870
96.6NRI
Relatively High
Overall Risk Rating
👥
Population
263,870
🏠
Building Value
$49.0B
💰
Annual Hazard Loss
$248.9M
⚠️
Hazards Tracked
16
Natural Hazard Risk Profile
🌀
Very HighHurricane
Annual Loss$143.2M
Risk Score98.9
🌡️
Relatively ModerateHeat Wave
Annual Loss$8.4M
Risk Score96.3
⚡
Relatively HighLightning
Annual Loss$2.1M
Risk Score95.7
🌊
Relatively HighRiverine Flooding
Annual Loss$70.2M
Risk Score94.2
🥶
Relatively HighCold Wave
Annual Loss$9.2M
Risk Score92.7
🔥
Relatively ModerateWildfire
Annual Loss$1.4M
Risk Score89.6
🧊
Relatively ModerateHail
Annual Loss$1.6M
Risk Score88.0
🌪️
Relatively ModerateTornado
Annual Loss$6.0M
Risk Score86.6
Show all 16 hazards
🏖️
Relatively HighCoastal Flooding
Annual Loss$3.3M
Risk Score82.6
💨
Relatively ModerateStrong Wind
Annual Loss$1.4M
Risk Score80.9
☀️
Relatively ModerateDrought
Annual Loss$988K
Risk Score80.2
⛄
Relatively ModerateWinter Weather
Annual Loss$208K
Risk Score79.0
❄️
Relatively ModerateIce Storm
Annual Loss$370K
Risk Score78.1
🏔️
Relatively LowEarthquake
Annual Loss$724K
Risk Score67.3
⛰️
Very LowLandslide
Annual Loss$596
Risk Score37.9
🌊
Insufficient DataTsunami
Annual Loss$0
Risk Score0.0
St. Tammany County vs. National Average
🎯 Overall Risk
96.6+47.9 vs avg
National avg: 48.7
🔥 Wildfire Risk
89.6+40.9 vs avg
National avg: 48.7
👥 Social Vulnerability
34.0-15.2 vs avg
National avg: 49.2
🛡️ Community Resilience
93.8+45.1 vs avg
National avg: 48.7
Community Profile
Social Vulnerability
34.0
Relatively LowHigher scores indicate greater social vulnerability to natural hazards.
Community Resilience
93.8
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.