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 Overview
About Natural Disaster Risk in Martin County, Florida
Martin carries relatively moderate risk
Martin County scores 94.08 on composite disaster risk, rating as relatively moderate despite being well above the national average. This score reflects significant exposure concentrated in coastal hazards rather than broad multi-hazard vulnerability. The county faces greater overall risk than most U.S. counties, driven primarily by water-related threats.
Well above Florida's average
Martin's 94.08 score exceeds Florida's state average of 75.74 by 18 points, placing it among the state's higher-risk counties. The county's risk profile is driven more narrowly than some peers, concentrated in hurricane and flood exposure. This makes Martin's threat landscape somewhat more focused than the most hazard-diverse Florida counties.
Comparable to affluent coastal peers
Martin County's risk closely tracks with St. Lucie and Palm Beach counties, all three facing similar hurricane (98.71) and flood challenges from their coastal positions. However, Martin's tornado risk of 74.84 is notably lower than inland neighbors, reflecting its oceanside location. The three-county coastal cluster shares the most acute threats.
Hurricanes and flooding are primary threats
Martin County faces extreme hurricane risk at 98.71 and substantial flood risk at 83.33, making water the dominant hazard concern. While wildfire risk is moderate at 90.39, the coastal county's greatest dangers come from storm surge and precipitation. Tornado risk of 74.84 is comparatively low due to the county's oceanside geography.
Flood and wind coverage are critical
With hurricane risk at 98.71 and flood risk at 83.33, Martin County residents need both windstorm and flood insurance to be adequately protected. Standard homeowners policies don't cover flood damage, making separate flood insurance essential for any structure in or near coastal areas. Elevate critical utilities and seal windows against wind-driven rain.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Martin County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Martin County
Risk Verdict
FEMA's National Risk Index rates Martin County at the 94th percentile nationally — above average and worth proactive preparation. Residents should prioritize a formal household emergency plan, including evacuation routes, insurance review, and a well-stocked emergency kit.
Hazard Breakdown
Hurricane risk is Martin County's dominant natural hazard, ranked at the 99th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 90th percentile nationally. Additional tracked hazards include flood (83th percentile), tornado (75th percentile), earthquake (21th percentile).
Preparedness Context
Hurricane exposure at the 99th percentile nationally makes Martin County a county where pre-season preparedness — not storm-day preparation — determines outcomes. Martin County evacuation decisions under a watch or warning benefit from prior planning, not routes improvised under time pressure. Martin County's wildfire exposure at the 90th percentile nationally adds a hazard layer that can persist or intensify after hurricane-force winds have passed, particularly in low-lying inland areas. Martin 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
Martin County is 18.3 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 Martin County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Martin County, FL?
What types of natural hazards affect Martin County?
How does Martin County risk compare to the Florida average?
Is Martin County at risk for hurricane?
How is natural disaster risk measured?
Why is Martin 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.