Madison County, Idaho: hazard risk
FEMA rates Madison County's overall risk Relatively Low (score 58.6 of 100, higher than 58% of rated U.S. counties); 1 of its 15 hazards are rated Relatively High or Very High, led by lightning. Its storm record holds 796 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 |
|---|---|---|---|
| Lightning | Relatively High | 88.3 | $1.2M |
| Cold Wave | Relatively Moderate | 85.2 | $5.6M |
| Winter Weather | Relatively Moderate | 67.9 | $134K |
| Earthquake | Relatively Low | 87.6 | $4.0M |
| Heat Wave | Relatively Low | 77.0 | $1.4M |
| Avalanche | Relatively Low | 73.7 | $11K |
| Wildfire | Relatively Low | 70.3 | $194K |
| Landslide | Relatively Low | 64.2 | $4K |
| Riverine Flooding | Relatively Low | 57.8 | $9.3M |
| Hail | Relatively Low | 41.7 | $210K |
| Strong Wind | Relatively Low | 19.1 | $187K |
| Volcanic Activity | Very Low | 64.5 | $63 |
| Drought | Very Low | 21.3 | $6K |
| Ice Storm | Very Low | 16.7 | $13K |
| Tornado | Very Low | 9.9 | $70K |
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 | 423 | 8 | $2.1M | 1st of 44 | 50th of 3,077 |
| High wind and dust storms | 142 | 0 | $8.5M | 1st of 44 | 103rd of 3,080 |
| Severe thunderstorm wind | 55 | 0 | $852K | 4th of 44 | 2459th of 3,080 |
| Extreme cold | 46 | 1 | – | 1st of 44 | 397th of 3,076 |
| Wildfires | 35 | 0 | $39K | 1st of 44 | 5th of 2,972 |
| Floods | 26 | 0 | $3.3M | 1st of 44 | 1391st of 3,080 |
| Hail | 20 | 0 | – | 6th of 44 | 2656th of 3,080 |
| Landslides and avalanches | 12 | 12 | $2K | 2nd of 44 | 32nd of 2,278 |
| Heat | 9 | 1 | – | 1st of 44 | 1168th of 3,076 |
| Tornadoes | 6 | 0 | $326K | 2nd of 44 | 2313th of 3,080 |
| Heavy rain | 5 | 0 | $2.5M | 5th of 44 | 1185th of 3,080 |
| Drought | 4 | 0 | – | 2nd of 44 | 2249th of 3,063 |
| Lightning | 4 | 0 | $34K | 4th of 44 | 1040th 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 Madison County record: every hazard by year and month, the deadliest events and FEMA's declarations.