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
Niedrig10
Moderat17
Erhöht22
Hoch9
Dominant hazards
The hazards most often rated elevated or higher across California's counties:
- Hochwasser — 33 counties
- Dürre — 32 counties
- Waldbrand — 30 counties
- Erdrutsch — 29 counties
Highest-risk counties
| County | FEMA composite | Score |
|---|---|---|
| Alameda County | Sehr hoch | 100 |
| Los Angeles County | Sehr hoch | 100 |
| Orange County | Sehr hoch | 100 |
| Riverside County | Sehr hoch | 100 |
| San Bernardino County | Sehr hoch | 100 |
| San Diego County | Sehr hoch | 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.
FEMA National Risk Index · as of 2026-07-10