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

McMinn County Disaster Risk

McMinn County, Tennessee

FEMA Risk Rating

Relatively Low

National Percentile

60th

of 3,144 counties

State Rank

#43

of 95 (1 = highest risk)

Flood Risk

63th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 63% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Relatively Low

Higher than 49% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 71% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 89% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 50% of US counties

Risk Overview

About Natural Disaster Risk in McMinn County, Tennessee

McMinn County above state average risk

McMinn County's composite risk score of 60.24 exceeds Tennessee's state average of 52.45, indicating above-average exposure to natural hazards. This elevated profile places the county in the moderate-to-higher risk tier nationally.

Mid-tier risk among Tennessee counties

McMinn County ranks in the middle range of Tennessee's disaster risk profile, safer than Maury and Montgomery counties but riskier than Marshall and Meigs counties. Its mixed hazard exposure reflects vulnerabilities common to East Tennessee's varied terrain.

Riskier than nearby Marshall County

McMinn County (60.24) faces notably higher risk than neighboring Marshall County (45.42) and McNairy County (50.54), though it trails Maury County (79.29). Monroe County (60.91) poses similar risk, making this region split between lower and higher-hazard areas.

Earthquakes, tornadoes, and floods threaten

McMinn County contends with earthquake risk at 88.90, tornado risk at 71.25, and flood risk at 62.63—a convergence of serious hazards. Wildfire risk (49.24) adds another layer of concern, particularly in forested areas during dry seasons.

Comprehensive insurance is non-negotiable

McMinn County residents should carry earthquake insurance, flood coverage, and enhanced wind protection, as these hazards pose genuine threats. Those in flood-prone areas should consider elevated coverage limits or structural improvements like foundation anchoring.

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

Preparedness Guide

What to Prepare for in McMinn County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    89th percentile
  2. #2
    TornadoPrepare
    71th percentile
  3. #3
    FloodPrepare
    63th percentile

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

Risk Advisory: McMinn County

Risk Verdict

McMinn County's FEMA risk score places it at the 60th percentile nationally, indicating lower-than-typical exposure for a U.S. county. A moderate composite score often means one or two hazard categories are doing the heavy lifting — knowing which ones matters for preparation.

Hazard Breakdown

Earthquake risk is McMinn County's dominant natural hazard, ranked at the 89th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 71th percentile nationally. Additional tracked hazards include flood (63th percentile), hurricane (50th percentile), wildfire (49th percentile).

Preparedness Context

With earthquake ranked as the top hazard at the 89th percentile nationally, McMinn County residents benefit from reviewing homeowners insurance: standard policies rarely cover earthquake damage, and separate earthquake insurance must be purchased before an event. The county's tornado risk at the 71th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. Earthquake insurance in McMinn 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

The Tennessee county average is 7.8 composite points below McMinn County's score, a gap that reflects the county's elevated position in the state's hazard distribution.

Is your household prepared for McMinn 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 McMinn County, TN?
McMinn County has a FEMA National Risk Index rating of Relatively Low, placing it in the 60th 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 McMinn County?
McMinn County is evaluated for five major natural hazard types: earthquake (89th percentile), tornado (71th percentile), flooding (63th percentile), hurricane (50th percentile), wildfire (49th percentile). The highest-risk hazard is earthquake at the 89th 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 McMinn County risk compare to the Tennessee average?
McMinn County's composite risk percentile is 60th, compared to the Tennessee state average of 53th percentile. The state's overall risk rating is Relatively Low. This means McMinn County faces higher natural disaster risk than the typical county in Tennessee.
Is McMinn County at risk for earthquake?
Yes, McMinn County's earthquake risk is at the 89th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, McMinn County is at the 63th 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 McMinn County higher risk than average?
McMinn County's composite risk score of 60th percentile is above the Tennessee state average of 53th percentile. This elevated risk is driven by earthquake exposure (89th percentile), along with tornado and flooding and hurricane 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.