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California · FEMA + NOAA + National Risk Index

Calaveras County, CA

23 FEMA disaster declarations (1977-2025), with a FEMA National Risk Index rating of Relatively Moderate. Most common hazard: Severe Storm.

23
FEMA declarations
15
Major disasters
87
NRI risk · Relatively Moderate
Severe Storm
Top hazard

The verdict

Calaveras County has a nationally busy FEMA history: 23 declarations, more than 62% of counties in this registry. But the state comparison tempers that reading: the total is 19% below the California county mean. FEMA's separate National Risk Index places the county in the riskiest 13%; that score models loss and vulnerability rather than counting declarations.

Riskiest 13%
of U.S. counties for FEMA National Risk Index score
Relatively Moderate
FEMA National Risk Index rating
23
FEMA declarations vs 21 national county avg
74
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 06009 · Calaveras County 23 declarations · rank 1120/3,266

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

  • DECL-HEAVY 23
  • MAJOR-MID 65%
  • RANK-LOWER #1,120
  • PHOTO-FINISH Roanoke
  • NRI-MID 87
  • ACT-HIGH High
  • TYPE-LEAD Severe Storm
  • VS-ST-BELOW -19%

Nearest declaration peer: Roanoke, VA (0 declaration gap)

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

Calaveras County in the declaration-count neighbourhood

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

declarations

What this shows Calaveras County carries 23 FEMA declaration records, ranked 1120 of 3,266 counties in this registry.

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

How Calaveras County's FEMA declaration count compares nationally

Calaveras County vs. all counties in this dataset

FEMA disaster declarations, all-time · Calaveras County

23 Top 38% higher than 62% 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

Calaveras County's FEMA Risk Index score

0/100100/100California avg89/10086.6/100
FEMA National Risk Index composite score vs. the California county average

What does Calaveras County's hazard record show?

Reading the federal records together

The NFIP claims register shows a middle-volume loss record here: 74 paid claims, totaling $2.3M. PlainHazard uses 50-499 claims for this descriptive band; FEMA does not publish it as a safety or coverage category. The $30.5K average describes payments on recorded claims only, leaving uninsured damage and properties without a claim outside the measure.

Start with the state benchmark: a California county averages 28.5 federal declaration records, while Calaveras County has 23. The gap is 19% below that mean. Fewer entries indicate a quieter history of recorded federal actions, not immunity from a hazard and not a prediction about what happens next.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 86.6/100 (Relatively Moderate). Expected Annual Loss is rated Relatively Moderate (roughly $53.4M in annualized losses). Social vulnerability reads Relatively Moderate and community resilience Relatively Low, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Wildfire stands out as the sharpest exposure here, rated Relatively High. FEMA's modeled frequency puts that hazard at roughly once every 84 years here.

58 /100

Historical Activity Index

High historical activity

Calaveras County, CA · 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) High
17/30

23 OpenFEMA declarations, full ingest window (1.1x national county average)

County Disaster Density Moderate
10/25

23 declarations (0.8x state county average of 29)

Major Disaster Share High
16/25

15 of 23 declarations are major disasters (65%)

Hazard Diversity Very High
15/20

6 different disaster types declared in Calaveras County

FEMA NRI 8-hazard radar - Calaveras County

Calaveras County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard scores for Earthquake 25, Flood 48, Hurricane 0, Tornado 8, Wildfire 70, Drought 70, Heat Wave 48, Winter Storm 70. The simple mean of these eight displayed scores is 42 of 100. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 42 8-hazard mean
Calaveras County NRI risk profile FIPS 06009 · displayed-hazard mean 42/100
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

23

Above median

Major Disaster share

65%

Major-heavy

NRI risk score

87

Relatively Moderate

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

How often does each hazard strike Calaveras 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
Wildfire Relatively High roughly once every 84 years
Drought Relatively High 73 modeled event-days per year
Landslide Relatively Moderate an average of 15 times per year
Winter Weather Relatively High an average of 16 times per year
Heat Wave Relatively Moderate 6.1 modeled event-days per year
Riverine Flooding Relatively Moderate roughly once every 1 years
Earthquake Relatively Low roughly once every 92 years
Volcanic Activity Very Low roughly once every 3,333 years
Lightning Relatively Low an average of 14 times per year
Avalanche Very Low roughly once every 30 years
Strong Wind Very Low roughly once every 22 years
Tornado Very Low roughly once every 10 years
Hail Very Low roughly once every 9 years

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

Disaster Types

Severe Storm 8
Fire 6
Flood 5
Biological 2
Hurricane 1
Drought 1

What Severe Storm declarations mean here

Severe Storm is the most frequent declaration type on Calaveras County's record, 35% of its declarations. In FEMA's vocabulary this covers convective weather: thunderstorm straight-line winds, large hail, and the multi-day outbreaks that often carry embedded tornadoes. Activity is heaviest in spring and summer, though the season varies by region.

These events behave differently from a hurricane on paper. Damage tends to be distributed along a storm track rather than concentrated on a coastline, and a declaration typically follows an outbreak that crossed several counties over a few days, not a single point of impact. Because the qualifying threshold is the cost of uninsured public and individual losses rather than storm intensity, two similar storms can produce a declaration in one year and none in another.

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 - 15 65.2%

of all 23 declarations

Fire Management - 4 17.4%

of all 23 declarations

Emergency - 4 17.4%

of all 23 declarations

FEMA Declarations Timeline

Year Declarations
2025 1
2023 3
2020 2
2019 1
2017 3
2015 2
2010 1
2006 1
2005 1
2004 2
1998 1
1997 1
1995 1
1992 1
1986 1
Show 1 earlier declaration years
1977 1

Disaster Declarations

How the 23 FEMA declarations break into federal action codes (DR / EM / FM). Same DISTINCT grain as the table below.

Download these 23 declarations as CSV . FEMA source data is public domain; our derived presentation is CC0.

DR# Title Type Incident Date
5612 2-7 FIRE FM Fire 2025-09-03
4699 SEVERE WINTER STORMS, STRAIGHT-LINE WINDS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2023-04-03
3592 SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES EM Flood 2023-03-10
4683 SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2023-01-14
4482 COVID-19 PANDEMIC DR Biological 2020-03-22
3428 COVID-19 EM Biological 2020-03-13
4431 SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2019-05-01
4308 SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES DR Flood 2017-04-01
4305 SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES DR Flood 2017-03-16
4301 SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES DR Severe Storm 2017-02-14
4240 VALLEY FIRE AND BUTTE FIRE DR Fire 2015-09-22
5111 BUTTE FIRE FM Fire 2015-09-10
1884 SEVERE WINTER STORMS, FLOODING, AND DEBRIS AND MUD FLOWS DR Severe Storm 2010-03-08
1646 SEVERE STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Severe Storm 2006-06-05
3248 HURRICANE KATRINA EVACUATION EM Hurricane 2005-09-13
2553 CA-PATTISON FIRE-09-03-2004 FM Fire 2004-09-03
2540 CA-CALAVERAS COMPLEX-08-07-2004 FM Fire 2004-08-07
1203 SEVERE WINTER STORMS AND FLOODING DR Severe Storm 1998-02-09
1155 SEVERE STORMS, FLOODING, MUD AND LANDSLIDES DR Severe Storm 1997-01-04
1046 SEVERE WINTER STORMS, FLOODING LANDSLIDES, MUD FLOW DR Severe Storm 1995-03-12
Show 3 earlier declaration records
DR# Title Type Incident Date
958 OLD GULCH & FOUNTAIN FIRES DR Fire 1992-08-29
758 SEVERE STORMS & FLOODING DR Flood 1986-02-21
3023 DROUGHT EM Drought 1977-01-20

Storm Events in California

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

Storm Type Events Fatalities Injuries Property Damage
High Wind 4,070 13 27 $228.2M
Flood 3,132 26 25 $985.1M
Heavy Snow 1,814 6 0 $1.6M
Dense Fog 1,605 52 148 $2.8M
Drought 1,421 0 0 $0

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

NFIP Flood Insurance Claims

Total Claims

74

Total Paid

$2.3M

Avg Per Claim

$30.5K

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

FEMA National Risk Index

Overall Risk

Relatively Moderate

Score: 86.6/100

Expected Annual Loss

Relatively Moderate

$53.4M/year

Social Vulnerability

Relatively Moderate

Community Resilience

Relatively Low

Hazard Risk Breakdown

Wildfire Relatively High
Drought Relatively High
Landslide Relatively Moderate
Winter Weather Relatively High
Heat Wave Relatively Moderate
Riverine Flooding Relatively Moderate
Earthquake Relatively Low
Volcanic Activity Very Low
Lightning Relatively Low
Avalanche Very Low
Strong Wind Very Low
Tornado Very Low
Hail Very Low
Cold Wave 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: Wildfire

Wildfire risk in the model reflects fuel, terrain, weather and how much development sits in the wildland-urban interface. It is one of the few hazards where the exposure is materially changed by land management and building choices, not only by where the county happens to be.

Worth noting for Calaveras County: the model and the federal record do NOT point at the same hazard. Wildfire carries the highest modeled rating (Relatively High), while the county's declaration history is led by Severe Storm. 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

Calaveras County's closest FEMA peer: Buckingham County, VA

Comparisons use published FEMA declaration fields plus the National Risk Index composite for Calaveras 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 Calaveras County - capture-dated entries only.

Compare beyond this state

Nationwide peers by NRI score & FEMA declaration volume

Two PlainHazard-derived comparison paths for Calaveras 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

Calaveras County's NFIP claims file (74 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 Calaveras County?
The most common disaster type in Calaveras County is Severe Storm, with 8 declarations. Other disaster types include Fire (6), Flood (5), Biological (2).
How does Calaveras County's FEMA declaration record compare with the California average?
The typical California county has 28.5 FEMA declaration records; Calaveras County has 23, or 19% fewer. Against the national county mean of 20.7, this county's total is 11% higher. The comparison is historical and says nothing about the probability of a future event.
How many major FEMA disaster declarations has Calaveras County received?
Calaveras County has received 15 major disaster declarations, representing 65% of all 23 disaster declarations.
How many flood insurance claims has Calaveras County filed?
Calaveras County has 74 National Flood Insurance Program (NFIP) claims totaling $2.3M in payments, with an average of $30.5K per claim.
What was the worst year for disasters in Calaveras County?
The most active year for disaster declarations in Calaveras County was 2017, with 3 declarations. The county has FEMA disaster data spanning 1977 to 2025.
What is the FEMA National Risk Index score for Calaveras County?
According to the FEMA National Risk Index, Calaveras County, California has an overall risk score of 86.6 out of 100 (Relatively Moderate). The county's social vulnerability rating is Relatively Moderate and community resilience is Relatively Low. The Expected Annual Loss (EAL) score is Relatively Moderate, representing $53.4M in annualized losses.
Which natural hazard poses the greatest risk to Calaveras County?
Based on FEMA NRI data, the highest-risk natural hazard in Calaveras County is Wildfire (risk rating: Relatively High). Other significant hazards include Drought (Relatively High) and Landslide (Relatively Moderate). FEMA's modeled event frequency puts wildfire here at roughly once every 84 years. FEMA derives these ratings from historical event frequency, the assets exposed, and the community's vulnerability profile.
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 Calaveras County · vintage 2026-08-25 · Methodology · California profile · Verify with FEMA OpenFEMA · Verify with NOAA Storm Events