North Slope Borough, Alaska: hazard risk
FEMA rates North Slope Borough's overall risk Very Low (score 14.8 of 100, higher than 14% of rated U.S. counties). Its storm record holds 986 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 |
|---|---|---|---|
| Cold Wave | Relatively Moderate | 84.8 | $4.1M |
| Winter Weather | Relatively Moderate | 82.0 | $189K |
| Avalanche | Very Low | 60.4 | $1K |
| Earthquake | Very Low | 50.2 | $229K |
| Landslide | Very Low | 13.8 | $44 |
| Wildfire | Very Low | 11.4 | $3K |
| Ice Storm | Very Low | 6.8 | $3K |
| Riverine Flooding | Very Low | 2.6 | $378K |
| Lightning | Very Low | 0.8 | $3K |
| Tornado | Very Low | 0.7 | $1 |
| Coastal Flooding | No Rating | 0.0 | $0 |
| Drought | No Rating | 0.0 | $0 |
| Hail | No Rating | 0.0 | $0 |
| Strong Wind | 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. |
|---|---|---|---|---|---|
| Winter storms | 648 | 0 | – | 25th of 29 | 2978th of 3,077 |
| Extreme cold | 144 | 0 | – | 8th of 29 | 2735th of 3,076 |
| High wind and dust storms | 141 | 0 | $12M | 26th of 29 | 2944th of 3,080 |
| Floods | 24 | 2 | $1.1M | 23rd of 29 | 3071st of 3,080 |
| Rip currents and high surf | 19 | 0 | $10.0M | 8th of 29 | 265th of 2,080 |
| Hurricanes and tropical storms | 8 | 0 | $1.3M | 12th of 29 | 1099th of 1,849 |
| Heavy rain | 1 | 0 | – | 4th of 29 | 2386th of 3,080 |
| Landslides and avalanches | 1 | 0 | – | 18th of 29 | 447th of 2,278 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full North Slope Borough record: every hazard by year and month, the deadliest events and FEMA's declarations.