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California

Comprehensive climate risk and disaster history profile

40
Billion-Dollar Events
$144.6B
Total Economic Impact
58
Counties
90.59
Avg Risk Score

Top Natural Hazards

Based on FEMA National Risk Index data across all 58 counties

ERQK
95.98 Avg Risk Score
Wildfire
92.12 Avg Risk Score
Drought
87.53 Avg Risk Score
LNDS
84.54 Avg Risk Score
Flooding
78.58 Avg Risk Score
Heat Wave
76.49 Avg Risk Score

Disaster Type Breakdown

Historical billion-dollar events by category (1980-2024)

Wildfire 17 events
$111.3B
Drought 10 events
$14.5B
Flooding 6 events
$9.9B
Severe Storm 4 events
$1.5B
Freeze 3 events
$7.3B

Disaster Trends by Decade

How disaster frequency and costs have changed over time

Highest Risk Counties

Counties with the highest overall risk scores based on FEMA NRI

Rank County Risk Score Risk Rating SVI Percentile
1 Los Angeles 100.0 Very High 8584.0%
2 Riverside 99.94 Very High 8297.0%
3 San Bernardino 99.9 Very High 9058.0%
4 Alameda 99.87 Very High 5150.0%
5 Santa Clara 99.84 Very High 3714.0%
6 Orange 99.78 Very High 5621.0%
7 San Diego 99.68 Very High 6989.0%
8 Contra Costa 99.59 Very High 4736.0%
9 Ventura 99.43 Very High 6073.0%
10 Santa Barbara 99.4 Very High 8364.0%

Recent Major Events

Most costly billion-dollar disasters in the past 10 years

Explore California Risk Data

Get personalized insights for your location within California

Disaster Analysis Assistant

Hello! I'm your disaster analysis assistant. I can help you understand disaster trends, analyze risk data, and answer questions about weather and climate disasters. How can I help you today?
AI-generated responses are based on historical data and risk models. Always verify critical decisions with official sources.