Gregg County Disaster Risk
Gregg County, Texas
FEMA Risk Rating
Relatively Moderate
National Percentile
87th
of 3,144 counties
State Rank
#27
of 254 (1 = highest risk)
Flood Risk
77th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively Low
Higher than 77% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Relatively Low
Higher than 63% of US counties
Tornado
Tornado and severe thunderstorm risk
Relatively High
Higher than 98% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively Low
Higher than 62% of US counties
Hurricane
Tropical cyclone and hurricane risk
Relatively Low
Higher than 72% of US counties
Risk Overview
About Natural Disaster Risk in Gregg County, Texas
Gregg County faces significant tornado risk
With a composite risk score of 86.99, Gregg County ranks as relatively moderate—substantially higher than the Texas state average of 49.00. The county's tornado score of 97.90 is among the highest in the nation, making it one of Texas's most tornado-exposed counties.
Texas's highest tornado-risk county
Gregg County's tornado score of 97.90 ranks as the highest among all Texas counties, reflecting its location in the heart of Tornado Alley's southern extension. The county also faces elevated risks from flooding (76.84) and hurricanes (72.05), creating a multi-hazard environment.
Exceeds regional tornado threat levels
Gregg County's tornado score of 97.90 dramatically surpasses neighboring Grayson County (92.88) and other nearby areas. This exceptional ranking reflects the county's geographic position in a region where atmospheric conditions frequently favor tornado formation.
Tornadoes pose existential threat
Gregg County's tornado risk of 97.90 is the most pressing hazard, with spring and early summer bringing frequent severe weather events. Secondary risks from flooding (76.84) and earthquakes (61.80) also require attention and preparedness.
Build tornado resilience into your home
Gregg County residents should invest in a safe room or storm shelter rated for tornado impact, as standard homeowners insurance does not cover tornado damage. Install impact-resistant windows, reinforce your roof structure, and maintain a weather alert system to stay informed during severe weather season.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Gregg County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Gregg County
Risk Verdict
Gregg County's overall risk score at the 87th percentile nationally signals meaningful exposure to multiple natural hazard types. Comprehensive household preparedness — including reviewing insurance, maintaining emergency supplies, and knowing evacuation routes — is strongly recommended.
Hazard Breakdown
Tornado risk is Gregg County's dominant natural hazard, ranked at the 98th percentile nationally under FEMA's National Risk Index. Flood ranks second at the 77th percentile nationally. Additional tracked hazards include hurricane (72th percentile), wildfire (63th percentile), earthquake (62th percentile).
Preparedness Context
Gregg County ranks at the 98th percentile nationally for tornado exposure. Unlike many slow-onset hazards, tornadoes in Gregg County can reach full intensity in minutes; a pre-practiced household shelter plan matters far more than stockpiled supplies. The secondary flood hazard at the 77th percentile nationally adds seasonal complexity to Gregg County's preparedness calendar, since flood and tornado risk often peak at different points in the year. Gregg 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, Gregg County runs 38.0 composite risk points higher than the state mean — reflecting above-average hazard concentration in this area.
Is your household prepared for Gregg County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Gregg County, TX?
What types of natural hazards affect Gregg County?
How does Gregg County risk compare to the Texas average?
Is Gregg County at risk for tornado?
How is natural disaster risk measured?
Why is Gregg 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.