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

Palm Beach County Disaster Risk

Palm Beach County, Florida

FEMA Risk Rating

Relatively High

National Percentile

99th

of 3,144 counties

State Rank

#3

of 67 (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

Relatively High

Higher than 95% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 94% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively Low

Higher than 45% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very High

Higher than 100% of US counties

Risk Overview

About Natural Disaster Risk in Palm Beach County, Florida

Palm Beach ranks among America's riskiest

Palm Beach County's composite risk score of 99.20 places it in the highest tier of U.S. counties for natural disaster exposure, rating Relatively High. The county faces exceptional hurricane risk at 99.87 and flood risk at 98.92, reflecting its coastal geography and vulnerability to Atlantic storms.

Second-highest risk in Florida

Palm Beach's 99.20 score ranks it near the top statewide, exceeded only by counties with similar coastal exposure. At 23.46 points above Florida's average of 75.74, the county faces substantially greater disaster risk than most state communities.

Coastal chain of extreme risk

Palm Beach's 99.20 score aligns closely with Sarasota County (98.16) and Pinellas County (98.22) as part of Florida's most vulnerable coastal belt. Inland Polk County (96.53) and Pasco County (95.96) show measurably lower exposure, underscoring the coast's disproportionate hazard concentration.

Hurricanes and flooding are existential

With hurricane risk at 99.87 and flood risk at 98.92, Palm Beach faces nearly certain exposure to major Atlantic storms and their coastal surge impacts. Wildfire risk of 95.32 and tornado risk of 93.80 compound concerns, though hurricane and flood preparedness must be the priority.

Flood insurance is non-negotiable

Palm Beach homeowners must carry separate flood insurance; federal law requires it for mortgaged properties in high-risk zones, and claims show why. Elevating utilities, reinforcing roof attachments, and installing impact-resistant windows are critical investments for withstanding the region's frequent Atlantic hurricanes.

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

Preparedness Guide

What to Prepare for in Palm Beach County

Top Hazards by Exposure

  1. #1
    HurricanePrepare
    100th percentile
  2. #2
    FloodPrepare
    99th percentile
  3. #3
    WildfirePrepare
    95th percentile

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

Local Resources

Risk Advisory: Palm Beach County

Risk Verdict

FEMA's National Risk Index places Palm Beach County at the 99th percentile nationally — in the high-risk bracket for U.S. counties. Residents should prioritize a formal household emergency plan, including evacuation routes, insurance review, and a well-stocked emergency kit.

Hazard Breakdown

Hurricane risk is Palm Beach County's dominant natural hazard, ranked at the 100th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 99th percentile nationally. Additional tracked hazards include wildfire (95th percentile), tornado (94th percentile), earthquake (45th percentile).

Preparedness Context

Hurricane exposure at the 100th percentile nationally makes Palm Beach County a county where pre-season preparedness — not storm-day preparation — determines outcomes. Palm Beach County evacuation decisions under a watch or warning benefit from prior planning, not routes improvised under time pressure. Flood, the county's second-ranked hazard at the 99th percentile nationally, represents an additional preparedness consideration for Palm Beach County independent of hurricane season. Palm Beach County residents benefit from registering with the county's special-needs evacuation registry if household members have mobility limitations, require electricity-dependent medical equipment, or cannot self-evacuate — registration in advance of storm season is required.

Regional Context

Palm Beach County is 23.5 composite risk points above the Florida average, indicating that residents face greater natural hazard exposure than most of their in-state neighbors.

Is your household prepared for Palm Beach 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 Palm Beach County, FL?
Palm Beach County has a FEMA National Risk Index rating of Relatively High, placing it in the 99th 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 Palm Beach County?
Palm Beach County is evaluated for five major natural hazard types: hurricane (100th percentile), flooding (99th percentile), wildfire (95th percentile), tornado (94th percentile), earthquake (45th percentile). The highest-risk hazard is hurricane at the 100th 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 Palm Beach County risk compare to the Florida average?
Palm Beach County's composite risk percentile is 99th, compared to the Florida state average of 76th percentile. The state's overall risk rating is Relatively Low. This means Palm Beach County faces higher natural disaster risk than the typical county in Florida.
Is Palm Beach County at risk for hurricane?
Yes, Palm Beach County's hurricane risk is at the 100th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Palm Beach County is at the 99th percentile.
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 Palm Beach County higher risk than average?
Palm Beach County's composite risk score of 99th percentile is above the Florida state average of 76th percentile. This elevated risk is driven by hurricane exposure (100th percentile), along with flooding and wildfire and tornado risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.

Counties with Similar Risk

Lee County

Florida

-0.2

Relatively High

99th percentile

Broward County

Florida

+0.3

Relatively High

99th percentile

Collier County

Florida

-0.3

Relatively High

99th percentile

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.

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