Bannock County, Idaho: hazard risk
FEMA rates Bannock County's overall risk Relatively Low (score 66.9 of 100, higher than 66% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by winter weather. Its storm record holds 862 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 |
|---|---|---|---|
| Winter Weather | Relatively High | 96.1 | $997K |
| Wildfire | Relatively Moderate | 96.9 | $8.6M |
| Cold Wave | Relatively Moderate | 88.6 | $7.6M |
| Lightning | Relatively Moderate | 80.0 | $870K |
| Heat Wave | Relatively Moderate | 79.0 | $1.7M |
| Earthquake | Relatively Low | 82.8 | $2.6M |
| Riverine Flooding | Relatively Low | 51.9 | $8.4M |
| Hail | Relatively Low | 40.3 | $217K |
| Volcanic Activity | Very Low | 68.1 | $99 |
| Landslide | Very Low | 58.4 | $3K |
| Avalanche | Very Low | 23.0 | $64 |
| Ice Storm | Very Low | 20.3 | $20K |
| Drought | Very Low | 16.2 | $1K |
| Tornado | Very Low | 15.1 | $177K |
| Strong Wind | Very Low | 12.9 | $123K |
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 | 346 | 9 | $1.2M | 6th of 44 | 493rd of 3,077 |
| Severe thunderstorm wind | 112 | 0 | $657K | 7th of 44 | 2480th of 3,080 |
| Hail | 80 | 0 | $1.9M | 1st of 44 | 2460th of 3,080 |
| Wildfires | 76 | 0 | $609M | 2nd of 44 | 9th of 2,972 |
| High wind and dust storms | 75 | 0 | $2.2M | 6th of 44 | 793rd of 3,080 |
| Floods | 68 | 0 | $4.9M | 2nd of 44 | 1447th of 3,080 |
| Extreme cold | 30 | 2 | – | 4th of 44 | 1145th of 3,076 |
| Heavy rain | 20 | 0 | $2.7M | 1st of 44 | 820th of 3,080 |
| Lightning | 12 | 0 | $1.9M | 1st of 44 | 729th of 3,080 |
| Heat | 9 | 0 | – | 4th of 44 | 1777th of 3,076 |
| Tornadoes | 6 | 0 | $252K | 12th of 44 | 2612th of 3,080 |
| Landslides and avalanches | 5 | 5 | – | 18th of 44 | 167th of 2,278 |
| Drought | 4 | 0 | – | 5th of 44 | 2405th of 3,063 |
Source: NOAA NCEI Storm Events Database, 1950 to 2026-06-30; damage in 2025 dollars. Search the record at NCEI.
The full Bannock County record: every hazard by year and month, the deadliest events and FEMA's declarations.