STATE RISK ROLL-UP

California

Across 58 counties, FEMA rates 31 elevated or higher for overall natural-hazard risk. Here's what drives it — and where it concentrates.

How the counties rate

Faible10

Modéré17

Assez élevé22

Élevé9

Dominant hazards

The hazards most often rated elevated or higher across California's counties:

Inondations — 33 counties
Sécheresse — 32 counties
Incendie de forêt — 30 counties
Glissement de terrain — 29 counties

Highest-risk counties

County	FEMA composite	Score
Alameda County	Très élevé	100
Los Angeles County	Très élevé	100
Orange County	Très élevé	100
Riverside County	Très élevé	100
San Bernardino County	Très élevé	100
San Diego County	Très élevé	100

State figures are a roll-up of FEMA National Risk Index county data (counts and rankings), not an official FEMA state rating. Risk is an estimate from a public model, not a guarantee — verify your specific insurance needs with a licensed professional. See the methodology.

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FEMA National Risk Index · as of 2026-07-10