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Risk Index · Hamilton County · pop 366K

Chattanooga, TN real-estate risk

93.3
/100 · Relatively Moderate

Chattanooga, TN (Hamilton County) carries a FEMA National Risk Index score of 93.3/100 — rated "Relatively Moderate" — driven mainly by tornado and strong wind, with roughly $140M in expected natural-hazard losses per year (FEMA NRI, 2025).

Hazard scores (0–100)

Tornado
98.6
Strong wind
97.5
Earthquake
95.7
Riverine flood
94.9
Hail
82.6
Heat wave
75.6
Wildfire
70.6
Hurricane
62.5
Drought
36.6

Expected annual loss

$140M/yr

all natural hazards, county-wide

Buildings-only loss

$100M/yr

the part that hits owners + insurers

What it means for insurance

Severe convective storms (tornado/hail) drive the insurance cost here — wind/hail deductibles and roof age are what underwriters price, and what's been pushing Midwest/Plains premiums up.

Chattanooga risk — FAQ

Is Chattanooga, TN a high-risk area for real estate?

Chattanooga scores 93.3/100 on FEMA's National Risk Index — rated "Relatively Moderate" versus all US counties. Its expected natural-hazard loss is about $140M per year.

What is the biggest natural hazard in Chattanooga?

The highest-rated hazard is tornado (98.6/100), followed by strong wind (97.5/100).

How does hazard risk affect property insurance in Chattanooga?

Severe convective storms (tornado/hail) drive the insurance cost here — wind/hail deductibles and roof age are what underwriters price, and what's been pushing Midwest/Plains premiums up.

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Source: FEMA National Risk Index (Counties), v1.20 (2026-06-13). Scores are national percentiles (0–100). Insurance commentary is PropHunt's interpretation of the hazard data, not an insurance quote.

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