Franklin County, Idaho: hazard risk

FEMA rates Franklin County's overall risk Very Low (score 7.6 of 100, higher than 7% of rated U.S. counties). Its storm record holds 279 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).

National Risk Index (December 2025), Franklin County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
Winter WeatherRelatively Moderate64.3$142K
WildfireRelatively Low78.8$487K
EarthquakeRelatively Low70.5$1.1M
LightningRelatively Low39.2$211K
LandslideVery Low41.3$978
Heat WaveVery Low26.6$147K
AvalancheVery Low25.4$90
Volcanic ActivityVery Low21.8$1
Cold WaveVery Low20.5$316K
Riverine FloodingVery Low17.4$2.9M
DroughtVery Low16.5$2K
Strong WindVery Low10.4$104K
HailVery Low6.1$23K
Ice StormVery Low5.5$3K
TornadoVery Low3.2$11K

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

Storm records by hazard, with the county's rank by days with a record per 1,000 sq mi over each hazard's complete period
HazardRecordsDeathsDamageRank in stateRank in U.S.
Winter storms1852$71K8th of 44615th of 3,077
Severe thunderstorm wind240$49K23rd of 442721st of 3,080
Hail180$95K13th of 442738th of 3,080
High wind and dust storms172$25K26th of 441682nd of 3,080
Wildfires150$650K14th of 44123rd of 2,972
Floods70$2.2M23rd of 442701st of 3,080
Extreme cold40–15th of 442169th of 3,076
Tornadoes40$87K14th of 442650th of 3,080
Landslides and avalanches31$10K17th of 44165th of 2,278
Lightning10–14th of 442072nd 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 Franklin County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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