Natural hazards · Mount Shasta

Mount Shasta, CA natural hazards

Most of the natural-hazard damage FEMA expects in Mount Shasta comes from inland flooding, and overall the risk is high for a U.S. community. 5 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Mount Shasta?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Mount Shasta to be higher than in 71% of U.S. communities, mostly from inland flooding and avalanches.

Inland flooding46%Avalanches16%Wildfire15%Volcanic activity11%Earthquakes10%Everything else3%

By hazard

What Mount Shasta faces

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

Inland flooding

46% of expected damage

Above average · higher than 72% of U.S. places

Recorded about once a year in the area

Avalanches

16% of expected damage

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

Recorded about once every 30 years in the area

Wildfire

15% of expected damage

Well above average · higher than 97% of U.S. places

Volcanic activity

11% of expected damage

Well above average · among the top 1% of U.S. places

Earthquakes

10% of expected damage

Well above average · higher than 80% of U.S. places

Lower here

TornadoesHailWinter weatherHeat wavesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingHurricanesIce stormsCold wavesTsunamis

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 Mount Shasta flood?

FEMA's records show no paid flood insurance claims in Mount Shasta.

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Siskiyou County.

Disasters that hit Mount Shasta

5 federal disasters brought FEMA money here

Disasters the President declared that paid out in Mount Shasta itself: aid to households, or repair grants to the City of Mount Shasta.

Brought FEMA money into Mount ShastaDeclared for Siskiyou County only

2023

Tropical Storm Hilary

$54K to the City of Mount Shasta for repairs

2020

Wildfires

15 households applied for aid

2017

Severe Winter Storms, Flooding, and Mudslides

$94K to the City of Mount Shasta for repairs

2010

Severe Winter Storms, Flooding, and Debris and Mud Flows

$29K to the City of Mount Shasta for repairs

2005

Severe Storms, Flooding, Mudslides, and Landslides

2 households applied for aid

Siskiyou County has had 20 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. Mount Shasta is smaller than a census tract, so it shares the figures of the tract around its center.

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

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.