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Nevada · FEMA + NOAA + National Risk Index

Clark County, NV

14 FEMA disaster declarations (1981-2020), with a FEMA National Risk Index rating of Very High. Most common hazard: Fire.

14
FEMA declarations
5
Major disasters
100
NRI risk · Very High
Fire
Top hazard

The verdict

Two federal records point in the busier direction for Clark County. Its 14 FEMA declarations are 13% above the Nevada county mean and exceed the count for 20% of the 3,266 counties in this registry. Separately, FEMA's National Risk Index places it in the riskiest 1%, based on modeled expected annual loss, social vulnerability, and community resilience.

Riskiest 1%
of U.S. counties for FEMA National Risk Index score
Very High
FEMA National Risk Index rating
14
FEMA declarations vs 21 national county avg
626
NFIP flood insurance claims filed

FEMA's National Risk Index and its declaration registry are separate measures. This county's registry includes Fire Management Assistance (FM) records, which are not presidential disaster declarations, alongside Major Disaster (DR) and Emergency (EM) records.

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FEMA OpenFEMA declaration desk

County FIPS 32003 · Clark County 14 declarations · rank 2548/3,266

DECL-MID · MAJOR-LIGHT · RANK-LOWER · PHOTO-FINISH · NRI-HIGH · ACT-HIGH · TYPE-LEAD · VS-ST-ABOVE

  • DECL-MID 14
  • MAJOR-LIGHT 36%
  • RANK-LOWER #2,548
  • PHOTO-FINISH Pulaski
  • NRI-HIGH Very High
  • ACT-HIGH High
  • TYPE-LEAD Fire
  • VS-ST-ABOVE +13%

Nearest declaration peer: Pulaski, IL (0 declaration gap)

FEMA Disaster Declarations Summaries v2 filing stamps for this county register. Read with this county → · Nevada state profile

Clark County among counties with fewer federal records

FEMA declaration records among Clark County and nearest peers by total count

declarations

What this shows Clark County carries 14 FEMA declaration records, ranked 2548 of 3,266 counties in this registry.

Source FEMA OpenFEMA Disaster Declarations Summaries v2 As of 2026-08-25

Clark County versus quieter counties in this dataset

Clark County among lower-declaration counties nationally

FEMA disaster declarations, all-time · Clark County

14 20th percentile higher than 20% of 3,266 counties

This county 0 90 all U.S. counties FEMA tracks, bucketed by value

Each bar is a band; taller bars hold more counties. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source FEMA Disaster Declarations Summaries v2 · 2026-08-25

Clark County's FEMA Risk Index score

0/100100/100Nevada avg46/10099.6/100
FEMA National Risk Index composite score vs. the Nevada county average

Which hazard drives modeled loss here?

FEMA's modeled annual dollar loss for Clark County is led by Riverine Flooding (about $362.2M Expected Annual Loss, Historical Loss Ratio Relatively High), while Heat Wave carries the highest National Risk Index rating (Very High). EAL and risk score use different inputs; they need not agree.

Source: FEMA National Risk Index (December 2025 release) - Expected Annual Loss vs composite risk rating by hazard.

What does Clark County's hazard record show?

Reading the federal records together

FEMA's NFIP table contains a substantial paid-claim history for this county: 626 claims and $9.3M in payments. PlainHazard labels 500 or more claims a heavy registry record; that is a reporting bucket, not an official FEMA risk grade. The average paid claim was $14.8K. NFIP totals exclude uninsured flood losses and do not measure how many properties currently carry a policy.

The declaration register points in the busier direction. Clark County's 14 federal records stand 13% above the Nevada county mean of 12.4. That comparison describes how often federal action was recorded, including any Major Disaster, Emergency, and Fire Management entries shown on this page; it does not convert the count into future probability.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 99.6/100 (Very High). Expected Annual Loss is rated Relatively High (roughly $812.6M in annualized losses). Social vulnerability reads Relatively Moderate and community resilience Very Low, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Heat Wave stands out as the sharpest exposure here, rated Very High. FEMA's modeled frequency puts that hazard at 12 modeled event-days per year here, based on 78 historical events on record.

48 /100

Historical Activity Index

Moderate historical activity

Clark County, NV · PlainHazard-derived composite from federal records

This 0–100 index is an explicit PlainHazard composite from FEMA declaration history only on the county surface (this DB has no county-level NOAA damage row) . It is not FEMA's National Risk Index, not a forecast, and not a safety, insurance, or preparedness rating. Open the calculator · Methodology

FEMA Declarations (1953–present) Moderate
10/30

14 OpenFEMA declarations, full ingest window (0.7x national county average)

County Disaster Density High
14/25

14 declarations (1.1x state county average of 12)

Major Disaster Share Moderate
9/25

5 of 14 declarations are major disasters (36%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Clark County

FEMA NRI 8-hazard radar - Clark County

Clark County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 70, Flood 92, Hurricane 0, Tornado 8, Wildfire 70, Drought 8, Heat Wave 92, Winter Storm 48. The simple mean of these eight displayed scores is 49 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 49 8-hazard mean
Clark County NRI risk profile FIPS 32003 · displayed-hazard mean 49/100
How to read this radar

Each axis: NRI risk rating (Very Low-Very High) on a 0-100 scale. Rounder = broad exposure; spiky = one or two hazards dominate.

FEMA Records

14

Low volume

Major Disaster share

36%

Mixed major share

NRI risk score

100

Very High

Source: FEMA National Risk Index Per-county per-hazard ratings, December 2025 release

How often does each hazard strike Clark County?

FEMA's National Risk Index models a historical event count and an annualized frequency for each hazard type. Most hazards are expressed as modeled occurrences per year; FEMA expresses drought and heat-wave frequency as event-days per year. These modeled frequencies are not forecasts.

Hazard NRI Risk Rating Recurrence
Heat Wave Very High 12 modeled event-days per year
Riverine Flooding Very High an average of 7.3 times per year
Wildfire Relatively High roughly once every 246 years
Earthquake Relatively High roughly once every 57 years
Hail Relatively High roughly once every 9 years
Landslide Relatively Moderate an average of 5.4 times per year
Lightning Relatively High an average of 24 times per year
Avalanche Relatively Moderate roughly once every 15 years
Strong Wind Relatively Moderate roughly once every 3 years
Winter Weather Relatively Moderate an average of 2.2 times per year
Volcanic Activity Very Low roughly once every 10,000 years
Drought Very Low 70 modeled event-days per year
Tornado Very Low roughly once every 6 years
Cold Wave Very Low roughly once every 188,157 years

Source: FEMA National Risk Index Modeled annualized frequency; drought and heat wave use event-days/year, December 2025 release

Disaster Types

Fire 5
Biological 2
Severe Storm 2
Snowstorm 2
Flood 2
Hurricane 1

What Fire declarations mean here

Fire is the most frequent declaration type on Clark County's record, 36% of its declarations. Wildfire is the one hazard here with its own dedicated federal instrument: the Fire Management Assistance Grant, which appears in this data as an FM record. An FMAG can be authorised while a fire is still burning, on a timescale of hours, because its purpose is to reimburse the cost of fighting a fire that threatens to become a major disaster.

That distinction matters when comparing counties. An FM declaration is not a presidential major disaster declaration and does not carry the same assistance programmes, so a fire-heavy county's total is not directly comparable with a hurricane-heavy county's total unless the declaration types are separated, which is why they are listed separately on this page.

Declaration counts describe past federal action. They are a record of what was declared, not a forecast of future hazard probability.

Declaration Types

What DR / EM / FM mean

FEMA categorizes declarations as Major Disasters (DR), Emergencies (EM), or Fire Management Assistance (FM).

Major Disaster - 5 35.7%

of all 14 declarations

Fire Management - 5 35.7%

of all 14 declarations

Emergency - 4 28.6%

of all 14 declarations

FEMA Declarations Timeline

Year Declarations
2020 2
2013 1
2010 1
2005 5
2004 1
2002 1
1999 1
1984 1
1981 1

Disaster Declarations

How the 14 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 14 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
4523 COVID-19 PANDEMIC DR Biological 2020-04-04
3443 COVID-19 EM Biological 2020-03-13
5034 CARPENTER 1 FIRE FM Fire 2013-07-05
2847 CATHEDRAL FIRE FM Fire 2010-07-01
3243 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
2563 GOOD SPRINGS FIRE FM Fire 2005-06-24
1583 HEAVY RAINS AND FLOODING DR Severe Storm 2005-03-07
3204 SNOW EM Snowstorm 2005-02-23
3202 RECORD AND/OR NEAR RECORD SNOW EM Snowstorm 2005-02-17
2536 ROBBERS FIRE FM Fire 2004-07-26
2446 NV - LOST CABIN FIRE - 07/17/02 FM Fire 2002-07-17
1281 NV - FLASH FLOODING 7/8/99 DR Severe Storm 1999-07-20
723 HEAVY RAINS & FLOODING DR Flood 1984-09-06
645 SEVERE STORMS & FLOODING DR Flood 1981-08-28

Storm Events in Nevada

Statewide NOAA context only. PlainHazard does not currently attribute these state totals to Clark County.

Storm Type Events Fatalities Injuries Property Damage
High Wind 1,647 0 2 $10.4M
Heavy Snow 926 0 0 $123.0K
Thunderstorm Wind 463 3 0 $8.7M
Flash Flood 315 7 2 $36.7M
Excessive Heat 252 376 17 $0

Source: NOAA Storm Events Database State-level aggregated data, 2015-2025

NFIP Flood Insurance Claims

Total Claims

626

Total Paid

$9.3M

Avg Per Claim

$14.8K

Source: FEMA National Flood Insurance Program (NFIP) OpenFEMA Claims Data

FEMA National Risk Index

Overall Risk

Very High

Score: 99.6/100

Expected Annual Loss

Relatively High

$812.6M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Very Low

Hazard Risk Breakdown

Heat Wave Very High
Riverine Flooding Very High
Wildfire Relatively High
Earthquake Relatively High
Hail Relatively High
Landslide Relatively Moderate
Lightning Relatively High
Avalanche Relatively Moderate
Strong Wind Relatively Moderate
Winter Weather Relatively Moderate
Volcanic Activity Very Low
Drought Very Low
Tornado Very Low
Cold Wave Very Low
Hurricane No Rating

Source: FEMA National Risk Index (NRI) Ratings reflect relative scores among all US counties. Data: hazards.fema.gov/nri

The model's sharpest exposure here: Heat Wave

Heat Wave is measured in event-days per year rather than discrete events, and it is the hazard whose harm is most consistently undercounted: its toll is health and mortality, concentrated among people without cooling, rather than visible damage to property.

Worth noting for Clark County: the model and the federal record do NOT point at the same hazard. Heat Wave carries the highest modeled rating (Very High), while the county's declaration history is led by Fire. That is not a contradiction, the two measure genuinely different things. Declarations record federal ACTION, which requires damage costly enough to exceed state and local capacity; the Risk Index models EXPECTED annual loss across all 18 hazards whether or not any declaration ever followed. A hazard can be the county's largest modeled exposure and never once have driven a declaration.

National Risk Index ratings are modeled estimates of expected annual loss, not predictions of what will happen in any given year.

Data-matched county comparisons

Clark County's closest FEMA peer: San Francisco County, CA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Clark County. Record similarity, not a safety rating.

How these peers are chosen

Cohort: Published U.S. county equivalents outside the source state or territory. Each metric keeps six ETL candidates; three unique destinations are shown after de-duplicating across axes. Declaration-volume ranking combines count and Major-disaster share and prefers a different leading incident type; Major-share ranks the Major fraction adjusted for volume; NRI ranks the modeled composite score only.

Retained FEMA snapshot feed for Clark County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Clark County: nearest out-of-state National Risk Index composite and nearest FEMA declaration count (floor ≥5 records). Record similarity only, not a forecast of the next hazard.

Further reading for this county

Understanding disaster data

Clark County's NFIP claims file (626 claims) and FEMA declaration history measure different federal records - this guide separates them from modeled NRI risk.

More PlainHazard guides

Frequently Asked Questions

What is the most common disaster type in Clark County?
The most common disaster type in Clark County is Fire, with 5 declarations. Other disaster types include Biological (2), Severe Storm (2), Snowstorm (2).
How does Clark County's FEMA declaration record compare with the Nevada average?
FEMA lists 14 declaration records for Clark County. That is 13% above the Nevada county mean of 12.4. Its count is also 32% below the national county mean of 20.7. A larger declaration history records more federal actions; it is not a forecast of the county's next hazard.
How many major FEMA disaster declarations has Clark County received?
Clark County has received 5 major disaster declarations, representing 36% of all 14 disaster declarations.
How many flood insurance claims has Clark County filed?
Clark County has 626 National Flood Insurance Program (NFIP) claims totaling $9.3M in payments, with an average of $14.8K per claim.
Does FEMA's top risk-rated hazard match the highest Expected Annual Loss in Clark County?
No. In Clark County, Heat Wave has the highest National Risk Index rating (Very High), while Riverine Flooding leads Expected Annual Loss at about $362.2M. FEMA's risk score and dollar-loss model use different inputs, so the leaders often differ.
What was the worst year for disasters in Clark County?
The most active year for disaster declarations in Clark County was 2005, with 5 declarations. The county has FEMA disaster data spanning 1981 to 2020.
What is the FEMA National Risk Index score for Clark County?
According to the FEMA National Risk Index, Clark County, Nevada has an overall risk score of 99.6 out of 100 (Very High). Social vulnerability here rates Relatively Moderate, while community resilience comes in at Very Low. The Expected Annual Loss (EAL) score is Relatively High, representing $812.6M in annualized losses.
Which natural hazard poses the greatest risk to Clark County?
The top hazard flagged by FEMA's NRI for Clark County is Heat Wave (risk rating: Very High). Other significant hazards include Riverine Flooding (Very High) and Wildfire (Relatively High). FEMA's modeled event frequency puts heat wave here at 12 modeled event-days per year, drawn from 78 historical events on record. These scores are based on FEMA's analysis of historical event frequency, exposed assets, and community vulnerability.
Data Sources & Methodology

Disaster declaration data comes from the FEMA OpenFEMA Disaster Declarations Summaries v2 API, which includes all federally declared disasters, emergencies, and fire management assistance grants.

Storm event data is sourced from the NOAA Storm Events Database (2015-2025), which tracks significant weather events including thunderstorms, tornadoes, floods, and winter storms.

Flood insurance data comes from the FEMA National Flood Insurance Program (NFIP) OpenFEMA claims dataset.

This data is provided for informational purposes only. FEMA disaster declarations represent federal response actions and may not capture all local emergencies or weather events.

FEMA OpenFEMA declarations + NRI for Clark County · vintage 2026-08-25 · Methodology · Nevada profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events