New York County Disaster Risk
New York County, New York
FEMA Risk Rating
Relatively High
National Percentile
99th
of 3,144 counties
State Rank
#3
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 10% of US counties
Tornado
Tornado and severe thunderstorm risk
Moderate
Higher than 89% 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 97% of US counties
Risk Overview
About Natural Disaster Risk in New York County, New York
New York County faces the nation's highest disaster risk
At 98.79, New York County's composite risk score ranks among America's top 1% most disaster-exposed areas, earning a Relatively High rating. Manhattan's dense urban footprint, waterfront geography, and seismic proximity create unique and overlapping vulnerabilities.
Highest disaster risk in all of New York State
New York County's 98.79 score stands above even Nassau County (97.14), making it the state's single most disaster-exposed county. This 29-point margin above the state average of 69.42 reflects Manhattan's extraordinary concentration of hazard exposure.
Incomparably higher risk than any upstate county
New York County (98.79) dwarfs even the highest-risk upstate region, Monroe County (93.77), by 5 full points. Its risk profile stands alone in the state, driven by the island's waterfront exposure and earthquake proximity rather than weather-based hazards.
Flooding and earthquakes create the primary threat
Flood risk (99.24) and earthquake risk (96.95) both reach near-maximum severity in New York County, alongside hurricane risk (96.79) and tornado risk (89.38). Wildfire risk (9.92) represents the lone exception—the island's density and limited open space virtually eliminate this hazard.
Elite-level insurance coverage is essential
Flood insurance, earthquake coverage, wind/hail protection, and substantial umbrella liability are non-negotiable in New York County. Renters should carry renter's insurance with flood and earthquake endorsements; all residents should review policies annually as flood zone maps and building codes evolve.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in New York County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: New York County
Risk Verdict
New York County's composite risk score ranks at the 99th 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 New York County residents.
Hazard Breakdown
Flood risk is New York 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 (97th percentile), tornado (89th percentile), wildfire (10th percentile).
Preparedness Context
At the 99th percentile nationally for flood risk, New York 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. The county's second-ranked hazard, earthquake at the 97th percentile nationally, means New York County residents face compounding risks from multiple natural hazard types during peak seasons. A tested family preparedness plan specific to New York 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 29.4 composite points below New York County's score, a gap that reflects the county's elevated position in the state's hazard distribution.
Is your household prepared for New York County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in New York County, NY?
What types of natural hazards affect New York County?
How does New York County risk compare to the New York average?
Is New York County at risk for flooding?
How is natural disaster risk measured?
Why is New York 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.