riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Knox County Disaster Risk

Knox County, Tennessee

FEMA Risk Rating

Relatively Moderate

NRI score (0–100 relative scale)

92.1

FEMA composite county value

State Rank

#4

of 95, sorted high to low by RiskByCounty

Flood NRI score

92.8

higher coastal/inland value

Hazard Risk Breakdown

Five selected hazard categories out of FEMA's 18. Values are FEMA NRI v1.20 scores on a 0–100 relative scale.

Earthquake

96.8 / 100

Tornado

96.7 / 100

Flood

92.8 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (92.8) NRI scores.

Hurricane

65.8 / 100

Wildfire

63.0 / 100

FEMA NRI data summary

Selected hazard scores for Knox County

Among the five hazard categories displayed by RiskByCounty, earthquake has the highest NRI score for this county.

Earthquake
96.8
Tornado
96.7
Flood
92.8
Hurricane
65.8
Wildfire
63.0

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
92.8
Coastal Flooding
Not available
Inland Flooding
92.8

These five categories are a selected subset of FEMA's 18 natural hazards. FEMA's composite score and official rating are separate fields in the National Risk Index dataset.

FEMA National Risk Index documentation

Official Ready.gov resource

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Frequently Asked Questions

How many Tennessee county records are included?
RiskByCounty includes 95 Tennessee county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Tennessee?
FEMA NRI v1.20 (December 2025) county rating counts for Tennessee: Very Low: 31; Relatively Low: 50; Relatively Moderate: 12; Relatively High: 2; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Tennessee?
FEMA NRI v1.20 (December 2025) availability among 95 county records: Flood: 95 of 95; Wildfire: 95 of 95; Tornado: 95 of 95; Earthquake: 95 of 95; Hurricane: 95 of 95. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Knox County, TN?
Knox County has an official FEMA NRI v1.20 composite rating of Relatively Moderate and an NRI score (0–100 relative scale) of 92.1. RiskByCounty ranks it 4th of 95 Tennessee county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Knox County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Knox County, Earthquake: 96.8; Tornado: 96.7; Flood: 92.8; Hurricane: 65.8; Wildfire: 63.0.
How is flood displayed for Knox County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Knox County, Coastal Flooding is Not available, Inland Flooding is 92.8, and the displayed flood score is 92.8.

Counties with Similar Risk

Madison County

Tennessee

-0.0

Relatively Moderate

NRI score 92.1

Rutherford County

Tennessee

-0.4

Relatively Moderate

NRI score 91.7

Hamilton County

Tennessee

+1.2

Relatively Moderate

NRI score 93.3

Published by RiskByCounty

County summaries are deterministic transformations of frozen FEMA county fields. No external subject-matter reviewer is credited.

Published · Updated

Data Source

County data sourced from FEMA National Risk Index v1.20, released December 2025. Values are labeled NRI score (0–100 relative scale). RiskByCounty displays five selected hazard categories out of FEMA's 18; flood is the higher of the Coastal Flooding and Inland Flooding source scores.

RiskByCounty presents county-level source fields and deterministic arithmetic summaries.

Explore more data for Knox County

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