Natural hazards · Sun Valley

Sun Valley, ID natural hazards

Most of the natural-hazard damage FEMA expects in Sun Valley comes from avalanches, and overall the risk is very high for a U.S. community. Flood insurance has paid 7 claims here since 1982.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Sun Valley?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Sun Valley to be higher than in 86% of U.S. communities, mostly from avalanches and inland flooding.

Avalanches76%Inland flooding20%Everything else4%

By hazard

What Sun Valley faces

Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.

Avalanches

76% of expected damage

Well below average · higher than 0% of U.S. places

Recorded about once every 2 years in the area

Inland flooding

20% of expected damage

Well above average · higher than 96% of U.S. places

Recorded about once a year in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightningDroughtVolcanic activity

Not a risk here

Coastal floodingHurricanesTsunamis

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.

Flood insurance claims

Does Sun Valley flood?

Every paid claim on a federal flood insurance policy in Sun Valley, from FEMA’s records.

7paid claims since 1982

$157Kpaid to owners

0homes flooded more than once

19822026

of homes in flood zones
are insured

of all homes
are insured

No community discount. Sun Valley isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Blaine County.

Disasters that hit Sun Valley

Federal disasters declared here

None of the disasters declared for Blaine County shows FEMA aid or repair money reaching Sun Valley itself in FEMA’s records.

Brought FEMA money into Sun ValleyDeclared for Blaine County only

Blaine County has had 8 natural disasters declared since 1953, most often fires and floods.

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Sun Valley covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Sun Valley’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Sun Valley. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Sun Valley total about $7.7M a year, counting buildings, people and crops.

Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.