riskbycounty
FEMA NRI 1.19.0Updated Nov 2023 · Coverage 2014–2023Methodology

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 Overview

About Natural Disaster Risk in Trigg County, Kentucky

Trigg County's disaster risk compared nationally

Trigg County scores 48.41 on the composite risk scale, earning a Relatively Low rating slightly above Kentucky's state average of 44.21. This moderate profile reflects meaningful but manageable natural disaster exposure.

Where Trigg ranks among Kentucky counties

Trigg County's composite risk score of 48.41 places it in the middle tier of Kentucky counties, with moderate exposure relative to the state average. Trigg faces more hazard risk than the safest Kentucky counties but substantially less than the highest-risk regions.

How Trigg compares to nearby counties

Trigg's 48.41 score positions it between Scott County (56.08) and Simpson County (27.00), reflecting moderate regional risk. Trigg faces notably higher disaster exposure than Spencer County (13.33) and Todd County (28.56), but lower than Scott and Shelby.

Trigg's two major natural disaster threats

Earthquakes represent Trigg's highest hazard risk at 85.21, among Kentucky's most concerning seismic exposure levels. Tornadoes rank second at 69.72, creating a secondary but significant severe weather vulnerability.

Strengthen Trigg County home protection

Trigg's exceptionally high earthquake risk of 85.21 makes earthquake insurance a priority consideration for homeowners. Review your tornado and wind coverage as well, given Trigg's 69.72 tornado risk score.

Source: FEMA National Risk Index · Narrative reviewed by Evan Brooks, Data Editor

Preparedness Guide

What to Prepare for in Trigg County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    85th percentile
  2. #2
    TornadoPrepare
    70th percentile
  3. #3
    FloodPrepare
    49th percentile

Source: FEMA National Risk Index v1.19.0 · Percentiles are national (3,144 counties)

Risk Advisory: Trigg County

Risk Verdict

Trigg County's FEMA risk score places it at the 48th percentile nationally, indicating lower-than-typical exposure for a U.S. county. Trigg County residents can take confidence from a 48th percentile ranking, but even lower-risk counties benefit from a practiced household communication plan and awareness of the specific hazards listed above.

Hazard Breakdown

Earthquake risk is Trigg County's dominant natural hazard, ranked at the 85th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 70th percentile nationally. Additional tracked hazards include flood (49th percentile), hurricane (24th percentile), wildfire (13th percentile).

Preparedness Context

With earthquake ranked as the top hazard at the 85th percentile nationally, Trigg County residents benefit from reviewing homeowners insurance: standard policies rarely cover earthquake damage, and separate earthquake insurance must be purchased before an event. Tornado at the 70th percentile nationally is a separate hazard dimension for Trigg County that requires different protective strategies from earthquake preparedness. Earthquake insurance in Trigg County is typically offered as a separate policy — standard homeowners coverage excludes ground movement. Reviewing this gap and comparing policy options before an event is a financial preparedness step with potentially large consequences.

Regional Context

Trigg County sits within 4.2 composite points of the Kentucky state average, suggesting the county's hazard exposure is representative of the broader regional pattern.

Is your household prepared for Trigg County's hazards?

Review FEMA's county-specific preparedness checklists and emergency planning guides.

FEMA Ready Guide →

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.
By Evan Brooks, Data EditorUpdated Reviewed by Evan Brooks, 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.