riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Houston County Disaster Risk

Houston County, Texas

FEMA Risk Rating

Relatively Low

NRI score (0–100 relative scale)

60.7

FEMA composite county value

State Rank

#107

of 254, sorted high to low by RiskByCounty

Flood NRI score

40.0

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.

Wildfire

77.8 / 100

Hurricane

77.6 / 100

Tornado

63.7 / 100

Flood

40.0 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (40.0) NRI scores.

Earthquake

30.7 / 100

FEMA NRI data summary

Selected hazard scores for Houston County

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

Wildfire
77.8
Hurricane
77.6
Tornado
63.7
Flood
40.0
Earthquake
30.7

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
40.0
Coastal Flooding
Not available
Inland Flooding
40.0

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

Continue to Ready.gov for federal emergency-planning information maintained outside RiskByCounty.

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Frequently Asked Questions

How many Texas county records are included?
RiskByCounty includes 254 Texas county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Texas?
FEMA NRI v1.20 (December 2025) county rating counts for Texas: Very Low: 113; Relatively Low: 92; Relatively Moderate: 33; Relatively High: 14; Very High: 2; Not available: 0.
How complete are the five selected hazard fields for Texas?
FEMA NRI v1.20 (December 2025) availability among 254 county records: Flood: 254 of 254; Wildfire: 254 of 254; Tornado: 254 of 254; Earthquake: 254 of 254; Hurricane: 250 of 254. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Houston County, TX?
Houston County has an official FEMA NRI v1.20 composite rating of Relatively Low and an NRI score (0–100 relative scale) of 60.7. RiskByCounty ranks it 107th of 254 Texas county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Houston County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Houston County, Wildfire: 77.8; Hurricane: 77.6; Tornado: 63.7; Flood: 40.0; Earthquake: 30.7.
How is flood displayed for Houston County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Houston County, Coastal Flooding is Not available, Inland Flooding is 40.0, and the displayed flood score is 40.0.

Counties with Similar Risk

Atascosa County

Texas

+0.0

Relatively Low

NRI score 60.7

Trinity County

Texas

-0.0

Relatively Low

NRI score 60.6

Brooks County

Texas

+0.2

Relatively Low

NRI score 60.8

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.

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