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California · FEMA + NOAA + National Risk Index

San Diego County, CA

11 FEMA disaster declarations (2012–2024), with a FEMA National Risk Index rating of Very High. Most common hazard: Fire.

11
FEMA declarations
4
Major disasters
100
NRI risk · Very High
Fire
Top hazard

The verdict

San Diego County ranks in the riskiest 1% of U.S. counties for FEMA-modeled hazard risk, with more federally declared disasters than 95% of the 2,791 counties FEMA tracks. FEMA rates the county's overall risk as Very High, based on 11 federal disaster declarations recorded since 2012, most often fire, 186% above the national county average of 4.

Riskiest 1%
of U.S. counties for FEMA National Risk Index score
Very High
FEMA National Risk Index rating
11
FEMA declarations vs 4 national county avg
7
fire declarations, the most common hazard here

FEMA's National Risk Index score reflects expected annual loss, social vulnerability, and community resilience; the declaration count above reflects only Presidentially declared disasters, not every hazard event.

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How does San Diego County compare?

San Diego County vs. every U.S. county

FEMA disaster declarations, all-time

11 Top 5% higher than 95% of 2,791 counties

This county 0 30 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 · 2026-07-25

San Diego County's FEMA Risk Index score

FEMA National Risk Index composite score vs. the California county average

0/100100/100California avg89/10099.7/100
FEMA National Risk Index composite score vs. the California county average

How disaster-prone is San Diego County?

Declaration frequency

San Diego County, California has recorded 11 FEMA disaster declarations between 2012 and 2024, of which 4 were classified as Major Disaster declarations (DR) requiring federal individual and public assistance. That puts the county's average at 0.9 declarations per year across a 12-year record, or roughly 42% above the California county average of 7.8 and 186% above the national county average of 3.8. The dominant disaster type on record is Fire, with 7 of 11 declarations falling under this category.

FEMA National Risk Index

This county sits among the highest-risk counties nationally on FEMA's National Risk Index, a composite score of 99.7/100 (Very High). Expected Annual Loss is rated Very High (roughly $1539.2M in annualized losses). Social vulnerability reads Relatively Low and community resilience Very Low, both critical modifiers of realized harm here. Of the 18 hazards FEMA models, Wildfire stands out as the sharpest exposure here, rated Very High.

Flood exposure & the bottom line

Taken together, these indicators place San Diego County at a high relative risk level, its federal disaster history outpaces most of the country, and it is worth pairing that record with forward-looking hazard maps before making insurance or relocation decisions.

Risk Assessment

Risk Level

High

vs. California Avg

+42%

State avg: 7.8

vs. National Avg

+186%

National avg: 3.8

Avg Per Year

0.9

Over 12 years

FEMA NRI 8-hazard radar - San Diego County

San Diego County NRI risk profile 8-axis FEMA National Risk Index radar showing per-hazard composite scores for Earthquake 70, Flood 48, Hurricane 8, Tornado 25, Wildfire 92, Drought 25, Heat Wave 70, Winter Storm 25. Overall composite 45 of 100, classified Moderate. Earthquake Flood Hurricane Tornado Wildfire Drought Heat Wave Winter Storm 45 composite
San Diego County NRI risk profile FIPS 06073 · composite 45/100 (Moderate)
How to read this radar

The radar plots San Diego County's relative exposure to the eight headline natural hazards used by the FEMA National Risk Index. Each axis is the qualitative NRI risk rating (Very Low through Very High) re-expressed on a 0-100 scale so that the polygon shape lets you compare a county against another at a glance. A rounder polygon means broad multi-hazard exposure; a spiky polygon means one or two dominant hazards drive most of the modeled risk.

FEMA Records

11

Total declarations

NRI Source

FEMA 2023

Latest NRI release

County FIPS

06073

CA state code

Source: FEMA National Risk Index FEMA National Risk Index Per-county per-hazard ratings, 2023 release

Disaster Types

Fire 7
Flood 3
Biological 1

Declaration Types

What DR / EM / FM mean

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

Fire Management - 6 54.5%

of all 11 declarations

Major Disaster - 4 36.4%

of all 11 declarations

Emergency - 1 9.1%

of all 11 declarations

FEMA Declarations Timeline

Year Declarations
2024 1
2023 2
2021 1
2020 1
2018 2
2016 1
2014 2
2012 1

Disaster Declarations

DR# Title Type Incident Date
4758 SEVERE STORM AND FLOODING DR Flood 2024-02-19
4683 SEVERE WINTER STORMS, FLOODING, LANDSLIDES, AND MUDSLIDES DR Flood 2023-01-14
3591 SEVERE WINTER STORMS, FLOODING, AND MUDSLIDES EM Flood 2023-01-09
4569 WILDFIRES DR Fire 2020-10-16
4482 COVID-19 PANDEMIC DR Biological 2020-03-22
5251 WEST FIRE FM Fire 2018-07-06
5228 LILAC FIRE FM Fire 2017-12-07
5128 BORDER 3 FIRE FM Fire 2016-06-19
5055 COCOS FIRE FM Fire 2014-05-14
5054 POINSETTIA FIRE FM Fire 2014-05-14
5021 SHOCKEY FIRE FM Fire 2012-09-24

Storm Events in California

Storm Type Events Fatalities Injuries Property Damage
High Wind 4,876 14 30 $229.3M
Flood 3,682 33 31 $991.0M
Heavy Snow 2,071 6 0 $1.6M
Drought 2,039 0 0 $0
Dense Fog 1,820 59 164 $3.5M

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

FEMA National Risk Index

Overall Risk

Very High

Score: 99.7/100

Expected Annual Loss

Very High

$1539.2M/year

Social Vulnerability

Relatively Low

Community Resilience

Very Low

Hazard Risk Breakdown

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

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

Counties with Similar Risk in California

Frequently Asked Questions

How many natural disasters has San Diego County, California had?
San Diego County, California has received 11 FEMA disaster declarations from 2012 to 2024. Of these, 4 were major disaster declarations.
What is the most common disaster type in San Diego County?
The most common disaster type in San Diego County is Fire, with 7 declarations. Other disaster types include Flood (3), Biological (1).
How does San Diego County's disaster risk compare to the California average?
San Diego County has 11 disaster declarations, which is 42% higher than the California county average of 7.8 declarations. Compared to the national county average of 3.8, it is 186% higher.
How many major FEMA disaster declarations has San Diego County received?
San Diego County has received 4 major disaster declarations, representing 36% of all 11 disaster declarations. Major disaster declarations typically involve significant damage requiring federal assistance.
What types of storms are most common in California?
The most common storm types in California include High Wind (4,876 events), Flood (3,682 events), Heavy Snow (2,071 events). NOAA storm event data covers severe weather from 2015 to 2025.
What was the worst year for disasters in San Diego County?
The most active year for disaster declarations in San Diego County was 2014, with 2 declarations. The county has FEMA disaster data spanning 2012 to 2024.
What is the overall disaster risk level for San Diego County?
San Diego County has recorded 11 FEMA disaster declarations, a volume FEMA data classifies as high-risk, well above what most U.S. counties see over the same period.
What is the FEMA National Risk Index score for San Diego County?
According to the FEMA National Risk Index, San Diego County, California has an overall risk score of 99.7 out of 100 (Very High). The county's social vulnerability rating is Relatively Low and community resilience is Very Low. The Expected Annual Loss (EAL) score is Very High, representing $1539.2M in annualized losses.
Which natural hazard poses the greatest risk to San Diego County?
Based on FEMA NRI data, the highest-risk natural hazard in San Diego County is Wildfire (risk rating: Very High). Other significant hazards include Earthquake (Relatively High) and Landslide (Relatively High). 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.

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.

What this means for San Diego County

San Diego County, CA runs 42% above the California county average for federal disaster declarations (11 vs 8), a high historical load overall.

  • Its most common federal declaration type is fire management (6 of 11) - know the hazards most likely here before they happen. California overview
  • See how this county ranks against the rest of the country for disaster frequency. Most-disaster rankings
  • Read how to read FEMA declarations, NRI risk scores, and what they do and don't tell you. Disaster-data guide

Historical declaration counts describe past federal response, not a forecast. For current threats, follow the National Weather Service and local officials; in an emergency call 911.

All federal data sources used on this page
Data sourced from official public datasets. See our methodology for details. Retrieved and formatted by PlainHazard Editorial

Verify with FEMA → · Verify with FEMA NRI → · Verify with NOAA →

Every figure on PlainHazard is rendered directly from FEMA federal disaster data, no number is typed in by an editor. This page draws directly on FEMA federal disaster data, no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or national statistics report, or report a data error.