Valley County, Idaho: hazard risk

FEMA rates Valley County's overall risk Relatively Low (score 55.6 of 100, higher than 55% of rated U.S. counties). Its storm record holds 231 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), Valley County, by FEMA's rating, then score
HazardRisk ratingScoreExpected annual loss
WildfireRelatively Moderate97.5$9.1M
LandslideRelatively Moderate96.4$214K
AvalancheRelatively Moderate84.2$913K
EarthquakeRelatively Low66.2$676K
Winter WeatherRelatively Low59.1$92K
Riverine FloodingRelatively Low55.8$8.3M
LightningRelatively Low27.0$102K
Volcanic ActivityVery Low23.8$1
Heat WaveVery Low17.6$50K
DroughtVery Low12.8$12
Ice StormVery Low9.2$5K
Strong WindVery Low7.0$52K
Cold WaveVery Low5.5$24K
HailVery Low5.2$14K
TornadoVery Low3.6$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 storms1411–40th of 442444th of 3,077
Severe thunderstorm wind370$832K39th of 442884th of 3,080
Hail150–41st of 442947th of 3,080
Floods140$498K42nd of 442980th of 3,080
Heavy rain80–35th of 442204th of 3,080
High wind and dust storms70$13K44th of 442902nd of 3,080
Extreme cold20–40th of 442873rd of 3,076
Landslides and avalanches21–32nd of 44399th of 2,278
Lightning10–22nd of 442401st 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 Valley County record: every hazard by year and month, the deadliest events and FEMA's declarations.

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