Somerset County Disaster Risk
Somerset County, New Jersey
FEMA Risk Rating
Relatively Moderate
National Percentile
91th
of 3,144 counties
State Rank
#15
of 21 (1 = highest risk)
Flood Risk
95th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively High
Higher than 95% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Very Low
Higher than 35% of US counties
Tornado
Tornado and severe thunderstorm risk
Relatively Low
Higher than 72% of US counties
Earthquake
Seismic activity and ground shaking risk
Moderate
Higher than 89% of US counties
Hurricane
Tropical cyclone and hurricane risk
Moderate
Higher than 83% of US counties
Risk Overview
About Natural Disaster Risk in Somerset County, New Jersey
Somerset's risk tracks near the national average
Somerset County scores 90.94 on the composite risk scale, earning a relatively moderate risk rating that aligns closely with national averages for mixed-hazard counties. This rating reflects substantial but manageable exposure across multiple natural disaster types.
Somerset ranks in the middle tier statewide
Somerset's 90.94 score sits just slightly above New Jersey's state average of 90.81, placing it squarely in the middle of the state's risk distribution. This near-average standing means Somerset faces comparable disaster pressures to the state as a whole.
Somerset faces higher risk than surrounding counties
Somerset (90.94) outranks neighboring Salem (76.53), Sussex (77.45), and Warren (80.76) in composite risk, though Union County (95.48) surpasses it significantly. Somerset's elevated exposure stems partly from higher tornado and flood risks than its lower-risk neighbors.
Tornadoes and flooding dominate Somerset's hazards
Tornado risk scores 72.33 in Somerset, making it a notable concern compared to lower-risk neighbors, while flood risk registers at 95.04, posing severe threats to residents near waterways. Earthquake exposure also climbs to 88.52, reflecting Somerset's position in a moderately seismically active region.
Bundle flood and severe weather protections
Somerset residents should prioritize flood insurance given the county's 95.04 flood risk score, and supplement it with comprehensive homeowners' coverage that includes tornado and wind damage. A basement backup sump pump and reinforced safe room can provide additional protection during severe storms.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Somerset County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Somerset County
Risk Verdict
With a composite score at the 91th percentile, Somerset County sits above the national median for natural hazard exposure. Proactive preparedness — not reactive response — is key to managing life in one of the country's higher-risk counties; Somerset County residents should plan accordingly.
Hazard Breakdown
Flood risk is Somerset County's dominant natural hazard, ranked at the 95th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 89th percentile nationally. Additional tracked hazards include hurricane (83th percentile), tornado (72th percentile), wildfire (35th percentile).
Preparedness Context
With flood risk ranking at the 95th percentile nationally, Somerset County residents face one of the most financially damaging hazards without specialized coverage. Flood insurance through the NFIP or a private carrier is worth evaluating regardless of current mortgage requirements. Alongside flooding, earthquake exposure at the 89th percentile means households benefit from a multi-hazard preparedness plan rather than focusing on flood alone. Registering for Somerset County's county emergency alert system — typically through the county emergency management office's website — ensures households receive early warning when flood events develop faster than forecast.
Regional Context
Somerset County tracks the New Jersey county average closely, sitting 0.1 composite points above the state mean — neither a standout high-risk nor low-risk county within New Jersey.
Is your household prepared for Somerset County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Somerset County, NJ?
What types of natural hazards affect Somerset County?
How does Somerset County risk compare to the New Jersey average?
Is Somerset County at risk for flooding?
How is natural disaster risk measured?
Why is Somerset County higher risk than average?
Data Source
Risk data sourced from the FEMA National Risk Index (NRI). Risk scores are relative rankings (0–100) across all US counties — not absolute risk measures. Higher scores indicate higher relative risk compared to other counties.
Disclaimer: This data is informational only. It is not financial, insurance, or legal advice. Always consult a qualified professional before making insurance or real estate decisions.