Glenn County
California — Natural Disaster Risk Assessment
LowComposite Risk Score
National percentile: 74th
Glenn County faces low composite natural disaster risk (NRI Risk Index score 74.4, 74th national percentile), driven primarily by drought and earthquake exposure. Expected annual loss across all 18 hazard types is $41M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Drought | High | 85.27 / yr | $21M |
| Earthquake | Medium | 0.05 / yr | $10M |
| Wildfire | Medium | 0.00 / yr | $2M |
| Landslide | Low | 24.48 / yr | $47K |
| Heat Wave | Low | 7.49 / yr | $1M |
| Volcanic Activity | Very Low | 0.00 / yr | $17 |
| Riverine Flood | Low | 0.71 / yr | $7M |
| Lightning | Very Low | 7.90 / yr | $84K |
| Avalanche | Very Low | 0.01 / yr | $23 |
| Tornado | Very Low | 0.11 / yr | $65K |
| Hail | Very Low | 0.09 / yr | $20K |
| Strong Wind | Very Low | 0.01 / yr | $17K |
| Winter Weather | Very Low | 6.66 / yr | $173 |
| Coastal Flood | Very Low | 0.00 / yr | $0 |
| Cold Wave | 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 Glenn County?
Glenn County has a composite FEMA National Risk Index score of 74.4 out of 100, placing it in the Low category and the 74th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Glenn County?
The three highest-rated hazards are Drought (High, $21M EAL), Earthquake (Medium, $10M EAL), Wildfire (Medium, $2M EAL). These account for most of the county's expected annual losses.
How does Glenn County compare to other California counties?
Glenn County ranks #53 of 58 California counties for overall natural disaster risk, with a low 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. Glenn County's $41M EAL is a statistical average, not a guarantee for any specific year or address.