riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

Niagara County Disaster Risk

Niagara County, New York

FEMA Risk Rating

Relatively Moderate

National Percentile

83th

of 3,144 counties

State Rank

#20

of 62 (1 = highest risk)

Flood Risk

91th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 91% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 34% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 52% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 66% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 57% of US counties

Risk Overview

About Natural Disaster Risk in Niagara County, New York

Niagara County faces moderately elevated national risk

At 83.37, Niagara County's composite risk score sits above the U.S. average, earning a Relatively Moderate rating. The county's Lake Ontario shoreline and Niagara River position create heightened exposure to water-based hazards and seismic activity.

Above-average risk for New York State

Niagara County's 83.37 score exceeds the state average of 69.42 by 14 points, placing it in New York's higher-risk quartile. Only a handful of counties statewide face comparable multi-hazard exposure due to its Great Lakes position.

Riskier than upstate, safer than Rochester-area regions

Niagara County (83.37) substantially outpaces rural northern counties but sits below Monroe County (93.77), reflecting its waterfront location and moderate urban density. Its risk profile represents an intermediate zone between rural safety and concentrated urban exposure.

Flooding and tornadoes drive exposure levels

Flood risk (91.00) dominates Niagara County's hazard landscape, with tornado risk (52.35) and earthquake risk (65.94) adding substantial secondary threats. Hurricane risk (57.20) and wildfire risk (33.81) round out the exposure profile.

Flood and wind coverage should be your priority

A standalone flood insurance policy is essential for Niagara County residents, particularly those in the Niagara River corridor and Lake Ontario lowlands. Verify comprehensive wind and hail coverage in your standard policy, and consider earthquake endorsement if your home sits in a higher-risk micro-zone.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Niagara County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    91th percentile
  2. #2
    EarthquakePrepare
    66th percentile
  3. #3
    HurricanePrepare
    57th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Niagara County

Risk Verdict

Natural hazard risk in Niagara County is higher than the majority of U.S. counties, with a national composite rank of 83th. Niagara County's elevated composite score reflects cumulative multi-hazard exposure; households should prepare for the county's two or three primary hazard types.

Hazard Breakdown

Flood risk is Niagara County's dominant natural hazard, ranked at the 91th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 66th percentile nationally. Additional tracked hazards include hurricane (57th percentile), tornado (52th percentile), wildfire (34th percentile).

Preparedness Context

With flood ranked as the primary hazard at the 91th percentile nationally, Niagara County households should build a go-bag that includes important documents, medications, and supplies to sustain the family for at least three days if evacuation is needed. Alongside flooding, earthquake exposure at the 66th percentile means households benefit from a multi-hazard preparedness plan rather than focusing on flood alone. A waterproof container for documents (insurance policies, ID, prescriptions) and a clear household communication plan for when phone networks are congested are the two highest-value low-cost preparedness steps for Niagara County households.

Regional Context

A composite score 13.9 points above the New York state average puts Niagara County in a higher-risk category than most counties in the state.

Is your household prepared for Niagara County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

Frequently Asked Questions

What is the natural disaster risk in Niagara County, NY?
Niagara County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 83th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Niagara County?
Niagara County is evaluated for five major natural hazard types: flooding (91th percentile), earthquake (66th percentile), hurricane (57th percentile), tornado (52th percentile), wildfire (34th percentile). The highest-risk hazard is flooding at the 91th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Niagara County risk compare to the New York average?
Niagara County's composite risk percentile is 83th, compared to the New York state average of 69th percentile. The state's overall risk rating is Relatively Low. This means Niagara County faces higher natural disaster risk than the typical county in New York.
Is Niagara County at risk for flooding?
Yes, Niagara County's flooding risk is at the 91th percentile nationally. This places it in the top quartile for this hazard type.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Why is Niagara County higher risk than average?
Niagara County's composite risk score of 83th percentile is above the New York state average of 69th percentile. This elevated risk is driven by flooding exposure (91th percentile), along with earthquake and hurricane and tornado risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, Data Editor

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.