Merrimack County, New Hampshire
Natural Hazard Risk Assessment — Population: 153,727
78.2NRI
Relatively Low
Overall Risk Rating
👥
Population
153,727
🏠
Building Value
$30.8B
💰
Annual Hazard Loss
$48.8M
⚠️
Hazards Tracked
15
Natural Hazard Risk Profile
❄️
Relatively HighIce Storm
Annual Loss$1.1M
Risk Score89.8
⚡
Relatively HighLightning
Annual Loss$1.4M
Risk Score89.2
🌊
Relatively ModerateRiverine Flooding
Annual Loss$34.1M
Risk Score85.8
🌀
Relatively ModerateHurricane
Annual Loss$4.5M
Risk Score84.8
⛰️
Relatively LowLandslide
Annual Loss$23K
Risk Score81.1
⛄
Relatively ModerateWinter Weather
Annual Loss$268K
Risk Score80.4
🏔️
Relatively LowEarthquake
Annual Loss$1.5M
Risk Score76.1
🌡️
Relatively LowHeat Wave
Annual Loss$1.2M
Risk Score70.6
Show all 15 hazards
☀️
Relatively LowDrought
Annual Loss$329K
Risk Score58.8
🌪️
Relatively LowTornado
Annual Loss$1.9M
Risk Score56.2
🥶
Relatively LowCold Wave
Annual Loss$1.4M
Risk Score53.8
💨
Relatively ModerateStrong Wind
Annual Loss$748K
Risk Score52.5
🧊
Relatively LowHail
Annual Loss$202K
Risk Score37.2
🔥
Very LowWildfire
Annual Loss$24K
Risk Score35.2
🏔️
Very LowAvalanche
Annual Loss$119
Risk Score28.5
Merrimack County vs. National Average
🎯 Overall Risk
78.2+29.5 vs avg
National avg: 48.7
🔥 Wildfire Risk
35.2-13.5 vs avg
National avg: 48.7
👥 Social Vulnerability
14.9-34.3 vs avg
National avg: 49.2
🛡️ Community Resilience
80.8+32.1 vs avg
National avg: 48.7
Community Profile
Social Vulnerability
14.9
Very LowHigher scores indicate greater social vulnerability to natural hazards.
Community Resilience
80.8
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.