Collin County Disaster Risk
Collin County, Texas
FEMA Risk Rating
Relatively High
National Percentile
99th
of 3,144 counties
State Rank
#6
of 254 (1 = highest risk)
Flood Risk
97th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively High
Higher than 97% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Moderate
Higher than 81% of US counties
Tornado
Tornado and severe thunderstorm risk
Very High
Higher than 100% of US counties
Earthquake
Seismic activity and ground shaking risk
Moderate
Higher than 82% of US counties
Hurricane
Tropical cyclone and hurricane risk
Relatively Low
Higher than 60% of US counties
Risk Overview
About Natural Disaster Risk in Collin County, Texas
Collin County Faces Relatively High Risk
Collin County's composite score of 98.86 ranks Relatively High—nearly double the national average and among the most dangerous counties in the comparison group. The county confronts serious exposure across nearly every hazard type.
Second-Highest Risk in Texas
Collin County's score of 98.86 towers over the Texas state average of 49.00, making it one of Texas's riskiest counties overall. This elevated profile reflects the county's dense population and Dallas-area location in a high-impact zone.
Dramatically Riskier Than Nearby Counties
Collin County (98.86) faces triple the risk of Comal County (92.68) and far exceeds every other nearby county in this group. This makes Collin a clear outlier for disaster vulnerability in North Texas.
Tornado and Flooding Lead Multiple Threats
Tornado risk (99.94) and flood risk (96.79) are Collin County's dominant hazards, with scores near or exceeding 97 points. Earthquake (82.03) and wildfire (81.01) risks also exceed state averages, creating compound exposure for residents.
Comprehensive Coverage Essential in Collin
Collin County residents must prioritize flood insurance—standard homeowners policies exclude flood damage, and the county's 96.79 flood score demands separate coverage. Layer in tornado/wind protection, and consider earthquake coverage given the 82.03 score.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Collin County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Collin County
Risk Verdict
Collin County ranks in the top tier for natural disaster risk nationally, with a composite score at the 99th percentile. Comprehensive household preparedness — including reviewing insurance, maintaining emergency supplies, and knowing evacuation routes — is strongly recommended.
Hazard Breakdown
Tornado risk is Collin County's dominant natural hazard, ranked at the 100th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 97th percentile nationally. Additional tracked hazards include earthquake (82th percentile), wildfire (81th percentile), hurricane (60th percentile).
Preparedness Context
Collin County ranks at the 100th percentile nationally for tornado exposure. Unlike many slow-onset hazards, tornadoes in Collin County can reach full intensity in minutes; a pre-practiced household shelter plan matters far more than stockpiled supplies. Alongside tornado exposure, flood at the 97th percentile nationally means Collin County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. Collin County county emergency management typically publishes annual severe-weather preparedness guides tailored to local tornado patterns; households benefit from reviewing these before storm season begins each spring.
Regional Context
Compared to other Texas counties, Collin County runs 49.9 composite risk points higher than the state mean — reflecting above-average hazard concentration in this area.
Is your household prepared for Collin County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Collin County, TX?
What types of natural hazards affect Collin County?
How does Collin County risk compare to the Texas average?
Is Collin County at risk for tornado?
How is natural disaster risk measured?
Why is Collin 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.