Dewey County, South Dakota
Natural Hazard Risk Assessment — Population: 5,228
78.7NRI
Relatively Low
Overall Risk Rating
👥
Population
5,228
🏠
Building Value
$1.5B
💰
Annual Hazard Loss
$22.1M
⚠️
Hazards Tracked
13
Natural Hazard Risk Profile
🥶
Very HighCold Wave
Annual Loss$19.7M
Risk Score99.0
⛄
Relatively HighWinter Weather
Annual Loss$159K
Risk Score85.3
🔥
Relatively LowWildfire
Annual Loss$318K
Risk Score83.0
❄️
Relatively ModerateIce Storm
Annual Loss$94K
Risk Score65.2
🧊
Relatively LowHail
Annual Loss$195K
Risk Score57.8
⛰️
Very LowLandslide
Annual Loss$201
Risk Score31.9
☀️
Very LowDrought
Annual Loss$11K
Risk Score28.1
🌪️
Very LowTornado
Annual Loss$192K
Risk Score24.4
Show all 13 hazards
🌡️
Very LowHeat Wave
Annual Loss$47K
Risk Score23.3
💨
Relatively LowStrong Wind
Annual Loss$119K
Risk Score23.0
🌊
Very LowRiverine Flooding
Annual Loss$1.2M
Risk Score17.4
⚡
Very LowLightning
Annual Loss$31K
Risk Score16.4
🏔️
Very LowEarthquake
Annual Loss$7K
Risk Score12.2
Dewey County vs. National Average
🎯 Overall Risk
78.7+30.0 vs avg
National avg: 48.7
🔥 Wildfire Risk
83.0+34.3 vs avg
National avg: 48.7
👥 Social Vulnerability
98.7+49.5 vs avg
National avg: 49.2
🛡️ Community Resilience
6.9-41.8 vs avg
National avg: 48.7
Community Profile
Social Vulnerability
98.7
Very HighHigher scores indicate greater social vulnerability to natural hazards.
Community Resilience
6.9
Very LowHigher 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.