Brown County, South Dakota
Natural Hazard Risk Assessment — Population: 38,265
73.5NRI
Relatively Low
Overall Risk Rating
👥
Population
38,265
🏠
Building Value
$12.7B
💰
Annual Hazard Loss
$36.6M
⚠️
Hazards Tracked
13
Natural Hazard Risk Profile
⛄
Very HighWinter Weather
Annual Loss$1.5M
Risk Score98.2
🥶
Relatively HighCold Wave
Annual Loss$16.4M
Risk Score96.4
🧊
Relatively ModerateHail
Annual Loss$1.5M
Risk Score86.5
💨
Relatively ModerateStrong Wind
Annual Loss$1.7M
Risk Score82.5
❄️
Relatively ModerateIce Storm
Annual Loss$534K
Risk Score81.7
🔥
Relatively LowWildfire
Annual Loss$353K
Risk Score77.1
🌪️
Relatively ModerateTornado
Annual Loss$2.9M
Risk Score70.1
🌊
Relatively LowRiverine Flooding
Annual Loss$11.3M
Risk Score63.1
Show all 13 hazards
🌡️
Relatively LowHeat Wave
Annual Loss$402K
Risk Score48.7
⛰️
Very LowLandslide
Annual Loss$1K
Risk Score44.4
☀️
Very LowDrought
Annual Loss$31K
Risk Score30.6
🏔️
Very LowEarthquake
Annual Loss$68K
Risk Score27.8
⚡
Very LowLightning
Annual Loss$27K
Risk Score7.6
Brown County vs. National Average
🎯 Overall Risk
73.5+24.8 vs avg
National avg: 48.7
🔥 Wildfire Risk
77.1+28.4 vs avg
National avg: 48.7
👥 Social Vulnerability
24.1-25.1 vs avg
National avg: 49.2
🛡️ Community Resilience
85.6+36.9 vs avg
National avg: 48.7
Community Profile
Social Vulnerability
24.1
Relatively LowHigher scores indicate greater social vulnerability to natural hazards.
Community Resilience
85.6
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.