Natural Disaster Risk in Merrimack County
New Hampshire
Risk Summary for Merrimack County
Merrimack County scores 6.8/10 (High risk), above the U.S. average of 4.5. The leading hazard is Ice Storm.
Top Hazards
All 18 Hazard Scores
How it compares
Live Conditions
🏠 What this means for insurance
Above-average risk — check your policy limits
Standard homeowners insurance may not fully cover all hazards rated highly in this area. Verify that your policy includes adequate coverage for the top local hazards, and ask your insurer about specific endorsements or separate policies (e.g., flood, earthquake).
This is general information only. Consult a licensed insurance professional for advice specific to your property.
Natural Hazard Profile: Merrimack County, New Hampshire
Merrimack County, in the United States in New Hampshire, is characterized by its humid continental climate — long, cold winters and brief, warm summers. The county faces heavy nor'easter snowstorms, and its FEMA risk assessment establishes the hazard baseline shared by all the towns and cities it contains.
Merrimack County's overall natural disaster risk is rated 6.8/10 (High) by FEMA's National Risk Index. Freezing rain and ice accretion are the primary winter hazard, with glaze ice events capable of downing power lines, snapping tree limbs, and making roads impassable for days. Secondary hazards include lightning and hurricane.
Within New Hampshire, Merrimack County's risk is, slightly above the 6.2/10 state average. Nationally, it ranks well above the U.S. national average of 4.5/10. FEMA's analysis of Merrimack County identifies ice storm as the foremost hazard, followed by lightning and hurricane. These rankings reflect the relative frequency and severity of each hazard type in the local environment.
Merrimack County's high risk designation reflects meaningful exposure to natural hazards. Residents should verify that their insurance covers the area's primary risks, prepare a family emergency plan, and stay informed about seasonal hazard peaks through local weather and emergency management services.
What this means for Merrimack County: Ice Storm preparedness
- Have a backup heat source and charged devices ready before winter storms arrive.
- Prepare for multi-day power outages, as ice accretion frequently downs power lines.
- Keep walkways treated and avoid travel during freezing-rain events.
Cities in Merrimack County
ZIP codes in Merrimack County
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. For informational purposes only.