Grayson County Disaster Risk
Grayson County, Virginia
FEMA Risk Rating
Very Low
National Percentile
25th
of 3,144 counties
State Rank
#69
of 133 (1 = highest risk)
Flood Risk
28th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Very Low
Higher than 28% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Relatively Low
Higher than 46% of US counties
Tornado
Tornado and severe thunderstorm risk
Very Low
Higher than 19% of US counties
Earthquake
Seismic activity and ground shaking risk
Very Low
Higher than 40% of US counties
Hurricane
Tropical cyclone and hurricane risk
Relatively Low
Higher than 54% of US counties
Risk Overview
About Natural Disaster Risk in Grayson County, Virginia
Grayson County remains relatively protected
With a composite risk score of 24.65, Grayson County ranks in the "Very Low" category and significantly below the national average. Its position in southwestern Virginia's mountains provides natural buffering against many hazard types.
Below-average risk across Virginia
Grayson County's score of 24.65 trails Virginia's state average of 33.27 by roughly 25%, placing it firmly in the lower-risk tier statewide. Mountain elevation and distance from the coast explain much of this advantage.
Moderate risk for mountain region
Grayson County's 24.65 score falls between Greene County's 9.29 and Giles County's 16.57, reflecting higher wildfire exposure in the southwestern highlands. The county faces notably more wind and fire threats than lower-elevation neighbors.
Wildfires and hurricanes present main threats
Wildfire risk (45.58) and hurricane risk (54.23) represent Grayson County's highest hazard exposures, reflecting mountain topography and distance-moderated but still-present tropical storm impacts. Flood (28.44), earthquake (39.95), and tornado (18.64) risks remain more moderate.
Wildfire preparedness and evacuation plans critical
Grayson County homeowners should create defensible space around structures, maintain gutters clear of debris, and develop family evacuation plans for wildfire seasons. Standard homeowners policies may exclude wildfire; check coverage limits.
Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor
Preparedness Guide
What to Prepare for in Grayson County
Top Hazards by Exposure
Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)
Risk Advisory: Grayson County
Risk Verdict
Grayson County carries a low natural disaster risk burden, scoring at the 25th percentile under the FEMA National Risk Index. At the 25th percentile, Grayson County's risk profile is among the more manageable in the country — the hazard-specific breakdown above shows where any remaining preparedness focus is best directed.
Hazard Breakdown
Hurricane risk is Grayson County's dominant natural hazard, ranked at the 54th percentile nationally under FEMA's National Risk Index. Wildfire ranks second at the 46th percentile nationally. Additional tracked hazards include earthquake (40th percentile), flood (28th percentile), tornado (19th percentile).
Preparedness Context
Grayson County's primary hazard, hurricane, ranks at the 54th percentile nationally. Having a designated out-of-area contact, a pre-packed go-bag with medications and documents, and a confirmed evacuation route reduces decision-making load when a storm intensifies rapidly. Wildfire at the 46th percentile nationally is Grayson County's secondary hazard, often intensified by the same weather systems that produce hurricane conditions. The National Hurricane Center's official forecast cone and local NWS office watches and warnings are the authoritative sources for Grayson County storm tracking; households benefit from bookmarking these before storm season rather than relying on social media during an event.
Regional Context
Compared to the Virginia county average, Grayson County's composite score runs 8.6 points lower — a gap that reflects the county's relatively modest hazard profile within its state context.
Is your household prepared for Grayson County's hazards?
Review FEMA's county-specific preparedness checklists and emergency planning guides.
Frequently Asked Questions
What is the natural disaster risk in Grayson County, VA?
What types of natural hazards affect Grayson County?
How does Grayson County risk compare to the Virginia average?
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How is natural disaster risk measured?
Is Grayson County a safe place to live?
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.