Grayson County Disaster Risk
Grayson County, Kentucky
FEMA Risk Rating
Relatively Low
National Percentile
45th
of 3,144 counties
State Rank
#50
of 120 (1 = highest risk)
Flood Risk
48th
percentile
Hazard Risk Breakdown
Flood
River, coastal, and surface flooding risk
Relatively Low
Higher than 48% of US counties
Wildfire
Wildland and wildland-urban interface fire risk
Very Low
Higher than 12% of US counties
Tornado
Tornado and severe thunderstorm risk
Relatively Low
Higher than 71% of US counties
Earthquake
Seismic activity and ground shaking risk
Relatively Low
Higher than 70% of US counties
Hurricane
Tropical cyclone and hurricane risk
Very Low
Higher than 35% of US counties
Risk Overview
About Natural Disaster Risk in Grayson County, Kentucky
Grayson County: slightly above-average risk
Grayson County scores 45.26 on the composite risk scale with a Relatively Low rating, just above Kentucky's state average of 44.21. It represents a moderate-risk profile for the nation's standards.
Middle-of-the-road Kentucky risk profile
Grayson County ranks near Kentucky's median disaster risk, with its 45.26 score clustering it among the state's average-risk counties. It avoids both the highest and lowest risk tiers statewide.
Riskier than Grant, safer than Graves
Grayson County's 45.26 score positions it between nearby Grant County (16.29) and Graves County (83.97). Its flood risk of 48.28 and tornado risk of 70.77 exceed Grant County's but fall short of Graves County's extremes.
Tornados and earthquakes top the list
Tornado risk at 70.77 is Grayson County's leading hazard, followed closely by earthquake risk at 70.29. Flooding at 48.28 rounds out the county's top three concerns.
Standard coverage plus earthquake rider
Grayson County homeowners should obtain standard homeowners insurance with both tornado and earthquake riders to address the county's primary hazards. Adding flood insurance strengthens protection, especially in flood-prone zones.
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
With a national percentile rank of 45th, Grayson County faces below-average hazard exposure relative to U.S. counties as a whole. A 45th percentile score positions Grayson County among the nation's lower-risk counties, a genuinely favorable outcome — one that simple, low-cost preparedness habits can reinforce further.
Hazard Breakdown
Tornado risk is Grayson County's dominant natural hazard, ranked at the 71th percentile nationally under FEMA's National Risk Index. Earthquake ranks second at the 70th percentile nationally. Additional tracked hazards include flood (48th percentile), hurricane (35th percentile), wildfire (12th percentile).
Preparedness Context
At the 71th percentile nationally for tornado risk, Grayson County households benefit most from a reliable alert system — a NOAA weather radio that activates during overnight hours when residents may not be checking smartphone alerts. Alongside tornado exposure, earthquake at the 70th percentile nationally means Grayson County households face multi-hazard severe-weather seasons that benefit from a single integrated emergency plan covering both threats. For Grayson County households, a pre-decided family shelter plan — who goes where, how children are retrieved from school during a warning, and a neighborhood meet-up point if phones fail — provides real protection that no supply kit alone can replicate.
Regional Context
Grayson County tracks the Kentucky county average closely, sitting 1.1 composite points above the state mean — neither a standout high-risk nor low-risk county within Kentucky.
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, KY?
What types of natural hazards affect Grayson County?
How does Grayson County risk compare to the Kentucky average?
Is Grayson County at risk for tornado?
How is natural disaster risk measured?
Why is Grayson 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.