riskbycounty
FEMA National Risk Index

Martin County Disaster Risk

Martin County, Florida

FEMA Risk Rating

Relatively Moderate

National Percentile

94th

of 3,144 counties

State Rank

#23

of 67 (1 = highest risk)

Flood Risk

83th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 83% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Moderate

Higher than 90% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 75% of US counties

Earthquake

Seismic activity and ground shaking risk

Very Low

Higher than 21% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively High

Higher than 99% of US counties

Risk Advisory: Martin County

Risk Verdict

Martin County has a relatively moderate overall disaster risk profile, scoring in the 94th percentile nationally. While not in the highest tier, this county faces meaningful hazard exposure. Residents are encouraged to understand their specific risks and maintain emergency supplies.

Hazard Breakdown

Hurricane risk is the dominant hazard for Martin County, scoring in the 99th percentile nationally. It is followed by wildfire risk at the 90th percentile. Additional hazards include flood (83th), tornado (75th), earthquake (21th).

Preparedness Context

With hurricane risk as the top concern, Martin County residents should know your evacuation route, stockpile supplies for at least 72 hours, and review your homeowners and flood insurance policies annually. Secondary risks such as wildfire also warrant attention in household and community preparedness planning. FEMA recommends all households maintain at least 72 hours of food, water, and medication supplies regardless of specific hazard exposure.

Regional Context

Martin County is significantly riskier than the average county in Florida. Its composite risk score is 18.3 points higher than the state average, meaning residents face above-average exposure to natural hazards compared to their neighbors.

Is your home insured against Martin County's risks?

Compare home and flood insurance quotes in minutes.

Get Quotes →

Sponsored

High flood risk area

Learn about NFIP flood insurance coverage for your property.

Learn More →

Frequently Asked Questions

What is the natural disaster risk in Martin County, FL?
Martin County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 94th 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 Martin County?
Martin County is evaluated for five major natural hazard types: hurricane (99th percentile), wildfire (90th percentile), flooding (83th percentile), tornado (75th percentile), earthquake (21th percentile). The highest-risk hazard is hurricane at the 99th 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 Martin County risk compare to the Florida average?
Martin County's composite risk percentile is 94th, compared to the Florida state average of 76th percentile. The state's overall risk rating is Relatively Low. This means Martin County faces higher natural disaster risk than the typical county in Florida.
Is Martin County at risk for hurricane?
Yes, Martin County's hurricane risk is at the 99th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Martin County is at the 83th 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 Martin County higher risk than average?
Martin County's composite risk score of 94th percentile is above the Florida state average of 76th percentile. This elevated risk is driven by hurricane exposure (99th percentile), along with wildfire and flooding 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

Bay County

Florida

+0.0

Relatively Moderate

94th percentile

Citrus County

Florida

+0.6

Relatively High

95th percentile

Marion County

Florida

+0.6

Relatively High

95th percentile

By Logan Johnson, Founder & Data EditorUpdated Reviewed by Logan Johnson, Founder & 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.

Explore more data for Martin County

Property TaxCost of LivingCrime RateIncomeHealthSchoolsWater QualityWeatherCounty Score