riskbycounty
FEMA National Risk Index

Trigg County Disaster Risk

Trigg County, Kentucky

FEMA Risk Rating

Relatively Low

National Percentile

48th

of 3,144 counties

State Rank

#47

of 120 (1 = highest risk)

Flood Risk

49th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 49% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 13% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 70% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 85% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 24% of US counties

Risk Advisory: Trigg County

Risk Verdict

Trigg County shows a relatively low overall disaster risk profile, scoring in the 48th percentile nationally. The county faces moderate hazard exposure relative to other U.S. counties. Standard emergency preparedness is recommended, with attention to the specific hazards that dominate locally.

Hazard Breakdown

Earthquake risk is the dominant hazard for Trigg County, scoring in the 85th percentile nationally. It is followed by tornado risk at the 70th percentile. Additional hazards include flood (49th), hurricane (24th), wildfire (13th).

Preparedness Context

With earthquake risk as the top concern, Trigg County residents should secure heavy furniture and appliances, know how to shut off utilities, and keep emergency supplies accessible. Secondary risks such as tornado also warrant attention in household and community preparedness planning. FEMA recommends all households maintain at least 72 hours of food, water, and medication supplies regardless of specific hazard exposure.

Regional Context

Trigg County has a disaster risk profile close to the average county in Kentucky. Its composite risk score is within 4.2 points of the state average, meaning its overall hazard exposure is broadly representative of Kentucky as a whole.

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Frequently Asked Questions

What is the natural disaster risk in Trigg County, KY?
Trigg County has a FEMA National Risk Index rating of Relatively Low, placing it in the 48th percentile nationally out of 3,144 counties. This composite score reflects the county's overall exposure to natural hazards including floods, wildfires, tornadoes, earthquakes, and hurricanes, weighted by expected annual loss and social vulnerability.
What types of natural hazards affect Trigg County?
Trigg County is evaluated for five major natural hazard types: earthquake (85th percentile), tornado (70th percentile), flooding (49th percentile), hurricane (24th percentile), wildfire (13th percentile). The highest-risk hazard is earthquake at the 85th percentile nationally. These scores are derived from FEMA's National Risk Index, which analyzes expected annual loss, social vulnerability, and community resilience for each hazard type.
How does Trigg County risk compare to the Kentucky average?
Trigg County's composite risk percentile is 48th, compared to the Kentucky state average of 44th percentile. The state's overall risk rating is Relatively Low. This means Trigg County faces higher natural disaster risk than the typical county in Kentucky.
Is Trigg County at risk for earthquake?
Yes, Trigg County's earthquake risk is at the 85th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Trigg County is at the 49th percentile.
How is natural disaster risk measured?
FEMA's National Risk Index (NRI) calculates risk scores for 18 natural hazard types across all U.S. counties and census tracts. The composite score combines Expected Annual Loss (estimated dollar losses from each hazard), Social Vulnerability (demographic factors affecting disaster impact), and Community Resilience (ability to recover). Percentile scores rank each county against all 3,144 U.S. counties, and risk ratings range from Very Low to Very High.
Why is Trigg County higher risk than average?
Trigg County's composite risk score of 48th percentile is above the Kentucky state average of 44th percentile. This elevated risk is driven by earthquake exposure (85th percentile), along with tornado risk. Geographic location, terrain, climate patterns, and proximity to flood zones or fault lines all influence a county's risk profile.

Counties with Similar Risk

Rowan County

Kentucky

-0.5

Relatively Low

48th percentile

Martin County

Kentucky

+1.5

Relatively Low

50th percentile

Fulton County

Kentucky

-1.7

Relatively Low

47th percentile

By Logan Johnson, Founder & Data EditorUpdated Reviewed by Logan Johnson, Founder & Data Editor

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.

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