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

Broome County Disaster Risk

Broome County, New York

FEMA Risk Rating

Relatively Moderate

National Percentile

87th

of 3,144 counties

State Rank

#16

of 62 (1 = highest risk)

Flood Risk

93th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 93% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 36% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 84% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 69% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 78% of US counties

Risk Overview

About Natural Disaster Risk in Broome County, New York

Broome ranks among higher-risk counties

With a composite risk score of 87.47 and a relatively moderate rating, Broome County faces above-average disaster exposure compared to the nation. Multiple hazards converge here, making preparedness a shared county priority.

Well above average for New York

Broome's 87.47 score significantly exceeds New York's 69.42 average, placing it in the upper tier of the state's at-risk counties. Only a handful of New York counties face higher composite risk.

Riskier than most surrounding counties

Broome County's 87.47 score surpasses Chemung County (54.77) to the south and Cayuga County (61.51) to the northwest, though it ranks slightly above Albany County (85.88). Its location along the Susquehanna River valley amplifies flood exposure relative to neighboring regions.

Flooding poses the greatest hazard

Flood risk soars to 93.19—among the state's highest—followed by tornado risk at 83.59 and hurricane risk at 77.85. Broome's position along major river systems and its basin geography make flood preparedness critically important.

Flood insurance cannot wait

With flood risk at 93.19, flood insurance is essential regardless of your proximity to mapped floodplains—many damaging floods occur outside official zones. Pair this with a solid homeowners policy covering wind and tornado damage, and annually review your emergency plan.

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

Preparedness Guide

What to Prepare for in Broome County

Top Hazards by Exposure

  1. #1
    FloodPrepare
    93th percentile
  2. #2
    TornadoPrepare
    84th percentile
  3. #3
    HurricanePrepare
    78th percentile

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

Risk Advisory: Broome County

Risk Verdict

Natural hazard risk in Broome County is higher than the majority of U.S. counties, with a national composite rank of 87th. Broome 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 Broome County's dominant natural hazard, ranked at the 93th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 84th percentile nationally. Additional tracked hazards include hurricane (78th percentile), earthquake (69th percentile), wildfire (36th percentile).

Preparedness Context

With flood ranked as the primary hazard at the 93th percentile nationally, Broome 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. The county's second-ranked hazard, tornado at the 84th percentile nationally, means Broome County residents face compounding risks from multiple natural hazard types during peak seasons. 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 Broome County households.

Regional Context

A composite score 18.0 points above the New York state average puts Broome County in a higher-risk category than most counties in the state.

Is your household prepared for Broome 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 Broome County, NY?
Broome County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 87th 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 Broome County?
Broome County is evaluated for five major natural hazard types: flooding (93th percentile), tornado (84th percentile), hurricane (78th percentile), earthquake (69th percentile), wildfire (36th percentile). The highest-risk hazard is flooding at the 93th 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 Broome County risk compare to the New York average?
Broome County's composite risk percentile is 87th, compared to the New York state average of 69th percentile. The state's overall risk rating is Relatively Low. This means Broome County faces higher natural disaster risk than the typical county in New York.
Is Broome County at risk for flooding?
Yes, Broome County's flooding risk is at the 93th 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 Broome County higher risk than average?
Broome County's composite risk score of 87th percentile is above the New York state average of 69th percentile. This elevated risk is driven by flooding exposure (93th percentile), along with tornado and hurricane and earthquake 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.