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

Hardin County Disaster Risk

Hardin County, Tennessee

FEMA Risk Rating

Relatively Low

National Percentile

71th

of 3,144 counties

State Rank

#26

of 95 (1 = highest risk)

Flood Risk

54th

percentile

Hazard Risk Breakdown

Flood

River, coastal, and surface flooding risk

Relatively Low

Higher than 54% of US counties

Wildfire

Wildland and wildland-urban interface fire risk

Very Low

Higher than 29% of US counties

Tornado

Tornado and severe thunderstorm risk

Relatively Low

Higher than 76% of US counties

Earthquake

Seismic activity and ground shaking risk

Moderate

Higher than 90% of US counties

Hurricane

Tropical cyclone and hurricane risk

Relatively Low

Higher than 59% of US counties

Risk Overview

About Natural Disaster Risk in Hardin County, Tennessee

Hardin County above national average risk

Hardin County scores 70.71 on the composite risk index, placing it in the "Relatively Low" category but well above Tennessee's average of 52.45 and the typical U.S. county. Tornadoes (76.02) and earthquakes (90.33) drive this elevated profile, with tornado exposure particularly acute during spring months. While not in Hamilton County's extreme tier, Hardin faces meaningfully higher disaster risk than most American communities.

Upper-third disaster risk in Tennessee

Hardin County ranks in the upper third of Tennessee counties for natural disaster risk, with its 70.71 score notably above the state average. Its 76.02 tornado risk places it among the state's most tornado-prone counties, while its earthquake score of 90.33 reflects significant seismic vulnerability. Flood, wildfire, and hurricane risks remain secondary concerns relative to these two dominant hazards.

Riskier than Hardeman, safer than Henry

Hardin County's 70.71 score sits between nearby Hardeman County (63.01) to the east and Henry County (84.73) to the north, positioning it as regionally high-risk but not the worst. Its 76.02 tornado score closely matches Hardeman's 83.75, suggesting both counties sit in a shared severe-weather corridor. Only Henry County surpasses Hardin's overall exposure in this immediate region.

Tornadoes and earthquakes are paramount

Tornadoes score 76.02 and strike frequently during spring months—March through May typically bring the season's most dangerous activity to Hardin County. Earthquakes rate 90.33, indicating substantial seismic risk from nearby fault systems; while major quakes are rare, moderate tremors occur and can damage structures. Flooding concerns remain secondary, affecting primarily riverside properties rather than the broader county.

Add windstorm and earthquake riders now

Ensure your homeowners policy includes windstorm/hail coverage rated for tornado damage, and add a dedicated earthquake rider—your 90.33 earthquake score demands this protection. Flood insurance is optional unless you're in a mapped flood zone or near the Tennessee River. Review your policy limits before each spring tornado season to keep coverage current with your home's replacement value.

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

Preparedness Guide

What to Prepare for in Hardin County

Top Hazards by Exposure

  1. #1
    EarthquakePrepare
    90th percentile
  2. #2
    TornadoPrepare
    76th percentile
  3. #3
    HurricanePrepare
    59th percentile

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

Risk Advisory: Hardin County

Risk Verdict

Natural hazard pressure in Hardin County is below the national midpoint, with a composite score at the 71th percentile. Proactive emergency planning and awareness of the specific hazards driving Hardin County's score can meaningfully reduce household risk.

Hazard Breakdown

Earthquake risk is Hardin County's dominant natural hazard, ranked at the 90th percentile nationally under FEMA's National Risk Index. Tornado ranks second at the 76th percentile nationally. Additional tracked hazards include hurricane (59th percentile), flood (54th percentile), wildfire (29th percentile).

Preparedness Context

Earthquake exposure at the 90th percentile nationally puts Hardin County in a zone where utilities — gas, water, electrical — are the most common post-quake hazard. Knowing how to shut off the main gas valve is an important household skill to develop before an event occurs. The county's tornado risk at the 76th percentile nationally is a seasonal consideration alongside the year-round earthquake threat, requiring awareness of both hazard types. Hardin County households benefit from keeping shoes and a flashlight near the bed — post-earthquake navigation through debris in the dark is a common cause of secondary injury. This low-cost step has outsized protective value.

Regional Context

Hardin County is 18.3 composite risk points above the Tennessee average, indicating that residents face greater natural hazard exposure than most of their in-state neighbors.

Is your household prepared for Hardin 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 Hardin County, TN?
Hardin County has a FEMA National Risk Index rating of Relatively Low, placing it in the 71th 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 Hardin County?
Hardin County is evaluated for five major natural hazard types: earthquake (90th percentile), tornado (76th percentile), hurricane (59th percentile), flooding (54th percentile), wildfire (29th percentile). The highest-risk hazard is earthquake at the 90th 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 Hardin County risk compare to the Tennessee average?
Hardin County's composite risk percentile is 71th, compared to the Tennessee state average of 53th percentile. The state's overall risk rating is Relatively Low. This means Hardin County faces higher natural disaster risk than the typical county in Tennessee.
Is Hardin County at risk for earthquake?
Yes, Hardin County's earthquake risk is at the 90th percentile nationally. This places it in the top quartile for this hazard type. For flooding specifically, Hardin County is at the 54th 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 Hardin County higher risk than average?
Hardin County's composite risk score of 71th percentile is above the Tennessee state average of 53th percentile. This elevated risk is driven by earthquake exposure (90th percentile), along with tornado and hurricane 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.