FEMA NRI v1.20Released December 2025Methodology

Nevada Disaster Risk

Natural disaster risk data for all 17 counties.

FEMA release

December 2025

Mean county NRI score

46.2

Counties with Data

of 17 total

County risk atlas

Nevada hazard exposure by county

FEMA NRI v1.20 scores on a 0–100 relative scale. Toggle the composite and five selected hazard categories out of FEMA's 18. Flood is the higher of Coastal Flooding and Inland Flooding NRI scores.

Counties

17/17

Mean county NRI score

46.2

Risk layers

Highest Risk Counties

Clark County

Very High

NRI score 99.6

Washoe County

Relatively High

NRI score 96.7

Elko County

Relatively Moderate

NRI score 87.9

Douglas County

Relatively Moderate

NRI score 84.4

Nye County

Relatively Low

NRI score 78.3

Lowest Risk Counties

Esmeralda County

Very Low

NRI score 2.1

Eureka County

Very Low

NRI score 5.2

Pershing County

Very Low

NRI score 6.0

Mineral County

Very Low

NRI score 9.8

White Pine County

Very Low

NRI score 12.5

All Nevada Counties

County	NRI score	FEMA Rating	Flood	Wildfire	Tornado	Earthquake
Clark County	99.6	Very High	99.6	99.1	9.2	99.1
Washoe County	96.7	Relatively High	94.5	99.0	14.3	99.2
Elko County	87.9	Relatively Moderate	54.5	99.9	1.7	84.2
Douglas County	84.4	Relatively Moderate	73.8	97.9	2.6	96.3
Nye County	78.3	Relatively Low	81.9	80.9	1.5	91.0
Carson City	76.1	Relatively Low	46.1	93.5	1.9	96.6
Lyon County	71.4	Relatively Low	63.5	96.8	2.2	93.8
Churchill County	47.3	Relatively Low	53.2	64.5	1.7	91.3
Humboldt County	40.8	Very Low	17.0	97.1	2.1	78.6
Lincoln County	25.9	Very Low	39.0	91.6	1.1	80.2
Storey County	25.2	Very Low	9.8	96.3	2.0	80.8
Lander County	17.0	Very Low	15.7	94.0	1.8	69.2
White Pine County	12.5	Very Low	24.1	84.2	1.0	65.2
Mineral County	9.8	Very Low	12.9	49.3	1.3	84.3
Pershing County	6.0	Very Low	7.5	87.3	1.2	55.2
Eureka County	5.2	Very Low	7.7	90.9	1.0	41.7
Esmeralda County	2.1	Very Low	4.7	34.7	0.9	68.7

Frequently Asked Questions

How many Nevada county records are included?

RiskByCounty includes 17 Nevada county records from FEMA NRI v1.20 (December 2025).

Which FEMA county ratings appear in Nevada?

FEMA NRI v1.20 (December 2025) county rating counts for Nevada: Very Low: 9; Relatively Low: 4; Relatively Moderate: 2; Relatively High: 1; Very High: 1; Not available: 0.

How complete are the five selected hazard fields for Nevada?

FEMA NRI v1.20 (December 2025) availability among 17 county records: Flood: 17 of 17; Wildfire: 17 of 17; Tornado: 17 of 17; Earthquake: 17 of 17; Hurricane: 1 of 17. RiskByCounty displays five selected hazard categories out of FEMA's 18.

Official Ready.gov resource

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

Visit Ready.gov →

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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