Natural hazards · American Canyon

American Canyon, CA natural hazards

Most of the natural-hazard damage FEMA expects in American Canyon comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 1 claim here since 2023. 5 federal disasters brought FEMA money into town.

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

How exposed is American Canyon?

87
Very high
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in American Canyon to be higher than in 87% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding60%Earthquakes38%Everything else2%
By hazard

What American Canyon faces

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

Inland flooding

60% of expected damage
Well above average · higher than 92% of U.S. places
Recorded about once a year in the area

Earthquakes

38% of expected damage
Well above average · higher than 90% of U.S. places

Lower here

Coastal floodingTornadoesHailWinter weatherHeat wavesWildfireLandslidesStrong windLightningVolcanic activity

Not a risk here

HurricanesIce stormsCold wavesDroughtAvalanchesTsunamis
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 American Canyon flood?

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

1paid claims since 2023
$13Kpaid to owners
0homes flooded more than once
20232026

Biggest named events

  • California Atmospheric River: 1 claim, $13K
of homes in flood zones
are insured
of all homes
are insured
No community discount. American Canyon isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Napa County.
Disasters that hit American Canyon

5 federal disasters brought FEMA money here

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

Brought FEMA money into American CanyonDeclared for Napa County only
2020

Wildfires

62 households applied for aid $1K aid approved
2017

Wildfires

220 households applied for aid $26K aid approved
2014

Earthquake

363 households applied for aid $440K aid approved $51K to the City of American Canyon for repairs
2006

Severe Storms, Flooding, Landslides, and Mudslides

$12K to the City of American Canyon for repairs
2005

Severe Storms, Flooding, Mudslides, and Landslides

19 households applied for aid $3K aid approved $41K to the City of American Canyon for repairs
Napa County has had 31 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. American Canyon covers 3 census tracts, combined by population.
Money that reached townFlood claims are matched to American Canyon’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of American Canyon. 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 American Canyon total about $6.6M 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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01