Tillamook County
Oregon — Natural Disaster Risk Assessment
MediumComposite Risk Score
National percentile: 81th
Tillamook County faces medium composite natural disaster risk (NRI Risk Index score 81.3, 81th national percentile), driven primarily by earthquake and landslide exposure. Expected annual loss across all 18 hazard types is $39M.
Source: FEMA National Risk Index v1.20 · Updated December 2025
Top Hazards
All 18 Hazard Risks
| Earthquake | Medium | 0.02 / yr | $14M |
| Landslide | Medium | 6.86 / yr | $66K |
| Volcanic Activity | Very Low | 0.01 / yr | $657 |
| Tsunami | Medium | 0.15 / yr | $9M |
| Riverine Flood | Medium | 1.32 / yr | $15M |
| Coastal Flood | Medium | 3.83 / yr | $766K |
| Ice Storm | Low | 0.36 / yr | $62K |
| Wildfire | Very Low | 0.00 / yr | $28K |
| Avalanche | Very Low | 0.01 / yr | $215 |
| Heat Wave | Very Low | 3.46 / yr | $135K |
| Strong Wind | Low | 0.05 / yr | $180K |
| Winter Weather | Very Low | 12.02 / yr | $11K |
| Cold Wave | Very Low | 0.13 / yr | $103K |
| Drought | Very Low | 1.03 / yr | $1 |
| Lightning | Very Low | 5.77 / yr | $37K |
| Tornado | Very Low | 0.11 / yr | $67K |
| Hail | Very Low | 0.04 / yr | $8K |
| Hurricane | Very Low | 0.00 / yr | $0 |
Frequently Asked Questions
What is the overall natural disaster risk for Tillamook County?
Tillamook County has a composite FEMA National Risk Index score of 81.3 out of 100, placing it in the Medium category and the 81th national percentile. This combines Expected Annual Loss, Social Vulnerability, and Community Resilience across 18 hazard types.
What are the top natural hazards in Tillamook County?
The three highest-rated hazards are Earthquake (Medium, $14M EAL), Landslide (Medium, $66K EAL), Volcanic Activity (Very Low, $657 EAL). These account for most of the county's expected annual losses.
How does Tillamook County compare to other Oregon counties?
Tillamook County ranks #18 of 36 Oregon counties for overall natural disaster risk, with a medium 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. Tillamook County's $39M EAL is a statistical average, not a guarantee for any specific year or address.