San Bernardino County
California — Natural Disaster Risk Assessment
Very HighComposite Risk Score
National percentile: 100th
San Bernardino County faces very high composite natural disaster risk (NRI Risk Index score 99.8, 100th national percentile), driven primarily by landslide and wildfire exposure. Expected annual loss across all 18 hazard types is $2.08B.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Landslide | Very High | 27.53 / yr | $18M |
| Wildfire | Very High | 0.01 / yr | $146M |
| Earthquake | Very High | 0.11 / yr | $922M |
| Riverine Flood | Very High | 12.96 / yr | $960M |
| Heat Wave | High | 11.61 / yr | $18M |
| Strong Wind | High | 0.18 / yr | $4M |
| Lightning | High | 16.79 / yr | $2M |
| Hail | Medium | 0.07 / yr | $2M |
| Tornado | Medium | 0.76 / yr | $4M |
| Avalanche | Low | 0.07 / yr | $144K |
| Winter Weather | Low | 2.11 / yr | $62K |
| Drought | Low | 78.40 / yr | $37K |
| Volcanic Activity | Very Low | 0.00 / yr | $3 |
| Cold Wave | Low | 0.01 / yr | $392K |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Hurricane | Very Low | 0.00 / yr | $0 |
| Ice Storm | Very Low | 0.00 / yr | $0 |
| Tsunami | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for San Bernardino County?
San Bernardino County has a composite FEMA National Risk Index score of 99.8 out of 100, placing it in the Very High category and the 100th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in San Bernardino County?
The three highest-rated hazards are Landslide (Very High, $18M EAL), Wildfire (Very High, $146M EAL), Earthquake (Very High, $922M EAL). These account for most of the county's expected annual losses.
How does San Bernardino County compare to other California counties?
San Bernardino County ranks #5 of 58 California counties for overall natural disaster risk, with a very high rating.
What does Expected Annual Loss (EAL) mean?
EAL is FEMA's estimate of average annual dollar losses from natural hazards, calculated from historical event data and exposure models. San Bernardino County's $2.08B EAL is a statistical average, not a guarantee for any specific year or address.