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

Montgomery County Disaster Risk

Montgomery County, Tennessee

FEMA Risk Rating

Relatively Moderate

National Percentile

87th

of 3,144 counties

State Rank

#8

of 95 (1 = highest risk)

Flood Risk

84th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Moderate

Higher than 84% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 28% of US counties

Tornado

Tornado and severe thunderstorm risk

Moderate

Higher than 92% of US counties

Earthquake

Seismic activity and ground shaking risk

Relatively High

Higher than 95% of US counties

Hurricane

Tropical cyclone and hurricane risk

Very Low

Higher than 41% of US counties

Risk Overview

About Natural Disaster Risk in Montgomery County, Tennessee

Montgomery County Tennessee's riskiest county

Montgomery County's composite risk score of 87.37 far exceeds Tennessee's state average of 52.45, marking it as the state's most hazard-exposed county. This exceptional elevation reflects a dangerous convergence of earthquake, tornado, and flood vulnerabilities.

Highest-risk county in Tennessee

Montgomery County ranks as Tennessee's single most at-risk county for natural disasters, with a composite score that dwarfs nearly all state peers. Its "Relatively Moderate" rating reflects compounded exposures that dwarf most American counties.

Dramatically riskier than surrounding areas

Montgomery County (87.37) vastly exceeds the risk profiles of Maury County (79.29), McMinn County (60.24), and all other neighboring counties. Its hazard concentration stands out as exceptional within Tennessee's regional landscape.

Earthquakes, tornadoes, and floods dominate

Montgomery County faces earthquake risk at 95.32 (the highest in the state), tornado risk at 91.89, and flood risk at 84.48—a triple threat. This convergence of major hazards creates the most serious disaster exposure in Tennessee.

Multi-hazard insurance is absolutely essential

Montgomery County residents must carry earthquake insurance, NFIP flood insurance, and enhanced wind/tornado coverage—these are not optional but necessary protections. Consider structural improvements like storm shelters, foundation anchoring, and elevated utilities in light of the county's exceptional hazard profile.

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

Preparedness Guide

What to Prepare for in Montgomery County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    95th percentile
  2. #2
    TornadoPrepare
    92th percentile
  3. #3
    FloodPrepare
    84th percentile

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

Risk Advisory: Montgomery County

Risk Verdict

With a composite score at the 87th percentile, Montgomery County sits above the national median for natural hazard exposure. Proactive preparedness — not reactive response — is key to managing life in one of the country's higher-risk counties; Montgomery County residents should plan accordingly.

Hazard Breakdown

Earthquake risk is Montgomery County's dominant natural hazard, ranked at the 95th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 92th percentile nationally. Additional tracked hazards include flood (84th percentile), hurricane (41th percentile), wildfire (28th percentile).

Preparedness Context

At the 95th percentile nationally for earthquake exposure, Montgomery County households benefit from practicing Drop, Cover, and Hold On — the protocol that minimizes injury during shaking. Getting under a sturdy table or desk and holding on until shaking stops is the key action. The county's tornado risk at the 92th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. Building age matters for earthquake risk in Montgomery County: structures built before local seismic code adoption are statistically more vulnerable. Contacting the local building department about retrofit programs can reveal whether your structure qualifies for mitigation assistance.

Regional Context

At 34.9 points above the Tennessee state average, Montgomery County carries meaningfully higher natural disaster exposure than a typical Tennessee county.

Is your household prepared for Montgomery 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 Montgomery County, TN?
Montgomery County has a FEMA National Risk Index rating of Relatively Moderate, placing it in the 87th 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 Montgomery County?
Montgomery County is evaluated for five major natural hazard types: earthquake (95th percentile), tornado (92th percentile), flooding (84th percentile), hurricane (41th percentile), wildfire (28th percentile). The highest-risk hazard is earthquake at the 95th 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 Montgomery County risk compare to the Tennessee average?
Montgomery County's composite risk percentile is 87th, compared to the Tennessee state average of 53th percentile. The state's overall risk rating is Relatively Low. This means Montgomery County faces higher natural disaster risk than the typical county in Tennessee.
Is Montgomery County at risk for earthquake?
Yes, Montgomery County's earthquake risk is at the 95th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Montgomery County is at the 84th 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 Montgomery County higher risk than average?
Montgomery County's composite risk score of 87th percentile is above the Tennessee state average of 53th percentile. This elevated risk is driven by earthquake exposure (95th percentile), along with tornado and flooding 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.