Natural Disaster Risk in Somersworth
New Hampshire
Risk Summary for Somersworth
Somersworth scores 6.1/10 (High risk), above the U.S. average of 4.5. The leading hazard is Coastal Flooding.
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: Somersworth, New Hampshire
Somersworth is a city of approximately 12,205 residents in Strafford County, along the northeastern Atlantic Seaboard. The area experiences long, cold winters and brief, warm summers, with heavy nor'easter snowstorms shaping the pattern of natural hazards that residents encounter. Understanding the local risk profile is essential for anyone living in, moving to, or owning property in Somersworth.
According to FEMA's National Risk Index, Somersworth carries an overall risk score of 6.1/10, placing it in the high category. Coastal flood risk defines the local natural hazard environment, with sea-level rise trends gradually increasing the frequency of tidal flooding events alongside storm surge threats. The area also faces notable exposure to ice storm and hurricane.
Somersworth's risk score, near the 6.2/10 state average and above the U.S. national average of 4.5/10. Of the 18 hazard categories tracked by FEMA for Strafford County, the highest-scoring are coastal flood, ice storm, and hurricane. These scores reflect county-level data and represent the baseline risk that all communities in the county share.
With a high natural disaster risk rating, Somersworth residents benefit from taking preparedness seriously. Reviewing insurance coverage for coastal flood and secondary hazards, registering for emergency alerts, and maintaining a household emergency kit are practical steps that can significantly reduce impact during a major event.
What this means for Somersworth: Coastal Flooding preparedness
- Coastal flood and storm-surge damage requires separate flood insurance, not standard homeowners coverage.
- Know your evacuation zone and monitor tidal and surge forecasts during coastal storms.
- Elevate utilities and consider flood-resistant construction in low-lying shoreline areas.
Local Factors for Somersworth
These city-level factors differentiate Somersworth from other communities in Strafford County and provide geographic context for its hazard exposure.
Population
12,205
SuburbanGeographic Zone
Atlantic Coast
Hurricane, nor'easter & coastal flood risk
Climate Band
Cool Continental
Latitude 43.3°
Flood Terrain
Minimal — county topography limits flood risk
Flood score: 1.0/10
Wildfire Exposure
Lower — moist climate limits wildfire frequency
Fire score: 4.3/10
Coordinates
43.2533° N, 70.8855° W
Strafford County
Population and coordinates from SimpleMaps US Cities data. Hazard scores from FEMA National Risk Index. Geographic classification derived from coordinates.
Recent Climate Data for Somersworth
Last 12 months · Source: Open-Meteo archive
Notable Weather Days (last 12 months)
ZIP Codes in Somersworth
Other cities in New Hampshire
Data source: FEMA National Risk Index (NRI). Scores normalized to 1–10 across all US counties. City scores inherit county-level FEMA data. For informational purposes only.