Island County, Washington: hazard risk
FEMA rates Island County's overall risk Relatively Low (score 78.0 of 100, higher than 77% of rated U.S. counties); 1 of its 17 hazards are rated Relatively High or Very High, led by landslide. Its storm record holds 171 events since 1950.
FEMA's rating for each hazard
These are FEMA's county-wide model ratings and this county's storm record. They are not an assessment of any property, address or building, and not insurance advice: a property's risk depends on its own elevation, construction and location.
FEMA gives each hazard its own rating, and a rating does not follow the score from one hazard to the next: a hazard with a higher score can carry a lower rating than another. The table sorts by FEMA's rating, then by score (0 to 100, the county against every other county for that hazard).
| Hazard | Risk rating | Score | Expected annual loss |
|---|---|---|---|
| Landslide | Relatively High | 99.9 | $5.7M |
| Earthquake | Relatively Moderate | 96.3 | $22M |
| Ice Storm | Relatively Moderate | 76.0 | $314K |
| Coastal Flooding | Relatively Moderate | 73.4 | $1.4M |
| Volcanic Activity | Relatively Low | 84.7 | $3K |
| Riverine Flooding | Relatively Low | 54.9 | $7.9M |
| Cold Wave | Relatively Low | 47.8 | $889K |
| Winter Weather | Relatively Low | 45.3 | $56K |
| Lightning | Relatively Low | 24.5 | $88K |
| Wildfire | Very Low | 35.4 | $20K |
| Tsunami | Very Low | 35.4 | $402K |
| Heat Wave | Very Low | 29.7 | $137K |
| Tornado | Very Low | 11.3 | $85K |
| Avalanche | Very Low | 3.8 | $2 |
| Hail | Very Low | 2.4 | $3K |
| Strong Wind | Very Low | 1.6 | $6K |
| Drought | No Rating | 0.0 | $0 |
Source: FEMA National Risk Index, December 2025 release. A model of future loss, not a count of past events. FEMA's National Risk Index map.
What the record holds
| Hazard | Records | Deaths | Damage | Rank in state | Rank in U.S. |
|---|---|---|---|---|---|
| High wind and dust storms | 130 | 2 | $24M | 2nd of 39 | 15th of 3,080 |
| Winter storms | 26 | 0 | $5.9M | 11th of 39 | 1312th of 3,077 |
| Landslides and avalanches | 4 | 0 | $641K | 3rd of 39 | 46th of 2,278 |
| Floods | 3 | 0 | $1.1M | 11th of 39 | 2544th of 3,080 |
| Drought | 2 | 0 | – | 2nd of 39 | 2018th of 3,063 |
| Heavy rain | 2 | 0 | $28K | 8th of 39 | 899th of 3,080 |
| Extreme cold | 1 | 0 | – | 11th of 39 | 2312th of 3,076 |
| Heat | 1 | 0 | – | 19th of 39 | 1899th of 3,076 |
| Hurricanes and tropical storms | 1 | 0 | – | 2nd of 39 | 720th of 1,849 |
| Severe thunderstorm wind | 1 | 0 | – | 19th of 39 | 2943rd of 3,080 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Island County record: every hazard by year and month, the deadliest events and FEMA's declarations.