Bronx County Disaster Risk
Bronx County, New York
FEMA Risk Rating
Relatively High
National Percentile
98th
of 3,144 counties
State Rank
#4
of 62 (1 = highest risk)
Flood Risk
99th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively High
Higher than 99% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Very Low
Higher than 2% of US counties
Tornado
Tornado and severe thunderstorm risk
Moderate
Higher than 85% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively High
Higher than 97% of US counties
Hurricane
Tropical cyclone and hurricane risk
Relatively High
Higher than 95% of US counties
Risk Overview
About Natural Disaster Risk in Bronx County, New York
Bronx faces New York's highest risk
With a composite risk score of 98.35 and a relatively high rating, Bronx County ranks among the most disaster-exposed counties in the nation. This urban county's density, waterfront geography, and seismic proximity create compounding vulnerabilities that demand serious preparation.
Most vulnerable county in New York
Bronx County's 98.35 score dramatically exceeds New York's 69.42 state average, making it the state's highest-risk county by a significant margin. Its position in the metro New York area amplifies exposure to multiple overlapping hazards.
Exponentially higher risk than surrounding areas
Bronx County's 98.35 score far exceeds all neighboring counties, including nearby Albany (85.88) and Broome (87.47). The Bronx's urban density, coastal exposure, and seismic setting create a unique and elevated risk profile.
Floods, earthquakes, and hurricanes threaten
Flood risk reaches 98.54, earthquake risk stands at 96.69, and hurricane risk hits 95.29—three major hazards operating at critical levels simultaneously. The Bronx's waterfront location and aging infrastructure compound these natural exposures into significant community risk.
Multi-layered insurance is non-negotiable
Flood insurance is essential given the 98.54 flood score, and earthquake coverage deserves serious consideration at 96.69 risk. Verify your homeowners or renters policy includes wind/hurricane protection, and consult a local insurance agent about bundling strategies for maximum coverage.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Bronx County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Bronx County
Risk Verdict
Bronx County's composite risk score ranks at the 98th percentile nationally, reflecting genuine multi-hazard exposure for residents. At this risk level, having a documented household preparedness plan — not just awareness — is the meaningful next step for Bronx County residents.
Hazard Breakdown
Flood risk is Bronx County's dominant natural hazard, ranked at the 99th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 97th percentile nationally. Additional tracked hazards include hurricane (95th percentile), tornado (85th percentile), wildfire (2th percentile).
Preparedness Context
At the 99th percentile nationally for flood risk, Bronx County residents benefit from understanding their specific flood zone status. Even one inch of floodwater causes significant structural damage to properties outside officially designated high-risk zones. Secondary earthquake exposure at the 97th percentile adds a second preparedness layer; households should review coverage options and alert sign-up for both hazard types. A tested family preparedness plan specific to Bronx County's primary hazards — including how to shelter in place or evacuate, and who to call — provides more real protection than a general emergency kit sitting unused on a shelf.
Regional Context
The New York county average is 28.9 composite points below Bronx County's score, a gap that reflects the county's elevated position in the state's hazard distribution.
Is your household prepared for Bronx County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Bronx County, NY?
What types of natural hazards affect Bronx County?
How does Bronx County risk compare to the New York average?
Is Bronx County at risk for flooding?
How is natural disaster risk measured?
Why is Bronx 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.