riskbycounty
FEMA NRI v1.20Released December 2025Methodology

San Juan County Disaster Risk

San Juan County, Colorado

FEMA Risk Rating

Very Low

NRI score (0–100 relative scale)

10.7

FEMA composite county value

State Rank

#52

of 64, sorted high to low by RiskByCounty

Flood NRI score

4.0

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

33.6 / 100

Earthquake

11.0 / 100

Flood

4.0 / 100

Higher of FEMA Coastal Flooding (Not available) and Inland Flooding (4.0) NRI scores.

Tornado

1.6 / 100

FEMA NRI data summary

Selected hazard scores for San Juan County

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

Wildfire
33.6
Earthquake
11.0
Flood
4.0
Tornado
1.6
Hurricane
Not available

Higher of FEMA Coastal Flooding and Inland Flooding NRI scores

Displayed flood score
4.0
Coastal Flooding
Not available
Inland Flooding
4.0

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 Colorado county records are included?
RiskByCounty includes 64 Colorado county records from FEMA NRI v1.20 (December 2025).
Which FEMA county ratings appear in Colorado?
FEMA NRI v1.20 (December 2025) county rating counts for Colorado: Very Low: 35; Relatively Low: 19; Relatively Moderate: 8; Relatively High: 2; Very High: 0; Not available: 0.
How complete are the five selected hazard fields for Colorado?
FEMA NRI v1.20 (December 2025) availability among 64 county records: Flood: 64 of 64; Wildfire: 64 of 64; Tornado: 64 of 64; Earthquake: 64 of 64; Hurricane: 0 of 64. RiskByCounty displays five selected hazard categories out of FEMA's 18.
What FEMA NRI information is available for San Juan County, CO?
San Juan County has an official FEMA NRI v1.20 composite rating of Very Low and an NRI score (0–100 relative scale) of 10.7. RiskByCounty ranks it 52nd of 64 Colorado county records when sorting the FEMA composite NRI scores from high to low.
Which selected hazard scores are shown for San Juan County?
RiskByCounty displays five selected hazard categories out of FEMA's 18 using FEMA NRI v1.20 (December 2025). For San Juan County, Wildfire: 33.6; Earthquake: 11.0; Flood: 4.0; Tornado: 1.6.
How is flood displayed for San Juan County?
RiskByCounty's flood display is the higher of FEMA Coastal Flooding and Inland Flooding NRI scores. For San Juan County, Coastal Flooding is Not available, Inland Flooding is 4.0, and the displayed flood score is 4.0.

Counties with Similar Risk

Dolores County

Colorado

+0.6

Very Low

NRI score 11.3

Jackson County

Colorado

+1.1

Very Low

NRI score 11.8

Washington County

Colorado

+1.3

Very Low

NRI score 12.0

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 San Juan County

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