riskbycounty
FEMA NRI v1.20Released December 2025Methodology

Tooele County Disaster Risk

Tooele County, Utah

FEMA Risk Rating

Relatively Low

NRI score (0–100 relative scale)

48.9

FEMA composite county value

State Rank

#10

of 29, sorted high to low by RiskByCounty

Flood NRI score

18.3

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

97.3 / 100

Earthquake

83.6 / 100

Flood

18.3 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (18.3) NRI scores.

Tornado

13.6 / 100

FEMA NRI data summary

Selected hazard scores for Tooele County

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

Wildfire
97.3
Earthquake
83.6
Flood
18.3
Tornado
13.6
Hurricane
Not available

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
18.3
Coastal Flooding
Not available
Inland Flooding
18.3

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 Utah county records are included?
RiskByCounty includes 29 Utah county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Utah?
FEMA NRI v1.20 (December 2025) county rating counts for Utah: Very Low: 19; Relatively Low: 5; Relatively Moderate: 3; Relatively High: 2; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Utah?
FEMA NRI v1.20 (December 2025) availability among 29 county records: Flood: 29 of 29; Wildfire: 29 of 29; Tornado: 29 of 29; Earthquake: 29 of 29; Hurricane: 0 of 29. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for Tooele County, UT?
Tooele County has an official FEMA NRI v1.20 composite rating of Relatively Low and an NRI score (0–100 relative scale) of 48.9. RiskByCounty ranks it 10th of 29 Utah county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for Tooele County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For Tooele County, Wildfire: 97.3; Earthquake: 83.6; Flood: 18.3; Tornado: 13.6.
How is flood displayed for Tooele County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For Tooele County, Coastal Flooding is Not available, Inland Flooding is 18.3, and the displayed flood score is 18.3.

Counties with Similar Risk

Box Elder County

Utah

+7.0

Relatively Low

NRI score 55.9

Kane County

Utah

-9.2

Very Low

NRI score 39.7

Sanpete County

Utah

-10.3

Very Low

NRI score 38.6

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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