Gem County, Idaho: hazard risk
FEMA rates Gem County's overall risk Very Low (score 34.4 of 100, higher than 34% of rated U.S. counties). Its storm record holds 153 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 |
|---|---|---|---|
| Wildfire | Relatively Moderate | 96.5 | $5.9M |
| Winter Weather | Relatively Low | 53.9 | $74K |
| Heat Wave | Relatively Low | 44.3 | $284K |
| Riverine Flooding | Relatively Low | 35.7 | $4.2M |
| Strong Wind | Relatively Low | 24.5 | $233K |
| Earthquake | Very Low | 51.0 | $295K |
| Avalanche | Very Low | 49.9 | $540 |
| Landslide | Very Low | 47.4 | $1K |
| Volcanic Activity | Very Low | 45.0 | $9 |
| Ice Storm | Very Low | 23.4 | $22K |
| Lightning | Very Low | 19.9 | $69K |
| Drought | Very Low | 13.2 | $77 |
| Cold Wave | Very Low | 6.4 | $34K |
| Tornado | Very Low | 5.9 | $26K |
| Hail | Very Low | 5.0 | $12K |
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 | 79 | 1 | $120M | 24th of 44 | 1405th of 3,077 |
| Severe thunderstorm wind | 19 | 0 | $9K | 18th of 44 | 2700th of 3,080 |
| High wind and dust storms | 18 | 0 | – | 19th of 44 | 1328th of 3,080 |
| Hail | 12 | 0 | – | 9th of 44 | 2719th of 3,080 |
| Floods | 8 | 0 | $1.4M | 15th of 44 | 2552nd of 3,080 |
| Tornadoes | 4 | 0 | $5K | 8th of 44 | 2539th of 3,080 |
| Wildfires | 3 | 0 | – | 28th of 44 | 488th of 2,972 |
| Extreme cold | 2 | 0 | – | 25th of 44 | 2453rd of 3,076 |
| Heavy rain | 2 | 0 | – | 14th of 44 | 1540th of 3,080 |
| Heat | 1 | 1 | – | 18th of 44 | 2223rd of 3,076 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Gem County record: every hazard by year and month, the deadliest events and FEMA's declarations.