Natural hazards · Angwin

Angwin, CA natural hazards

Most of the natural-hazard damage FEMA expects in Angwin comes from inland flooding, and overall the risk is very high for a U.S. community. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Angwin?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Angwin to be higher than in 92% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding42%Earthquakes28%Wildfire21%Drought5%Everything else4%

By hazard

What Angwin faces

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

Inland flooding

42% of expected damage

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

Recorded about once a year in the area

Earthquakes

28% of expected damage

Well above average · higher than 91% of U.S. places

Wildfire

21% of expected damage

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

Drought

5% of expected damage

Recorded about 52 times a year in the area

Lower here

TornadoesHailWinter weatherHeat wavesLandslidesStrong windLightningAvalanchesVolcanic activity

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 Angwin flood?

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

of homes in flood zones
are insured

of all homes
are insured

No community discount. Angwin 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 Angwin

3 federal disasters brought FEMA money here

Disasters the President declared that paid out in Angwin itself: aid to households, or repair grants to Angwin.

Brought FEMA money into AngwinDeclared for Napa County only

2020

Wildfires

104 households applied for aid $24K aid approved

2017

Wildfires

14 households applied for aid $500 aid approved

2005

Severe Storms, Flooding, Mudslides, and Landslides

4 households applied for aid $3K aid approved

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. Angwin 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 Angwin’s own flood-insurance community; household aid to the registrant’s city; repair grants to Angwin. 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.

Angwin, CA natural hazards

How exposed is Angwin?

What Angwin faces

Inland flooding

Earthquakes

Wildfire

Drought

Lower here

Not a risk here

Does Angwin flood?

3 federal disasters brought FEMA money here

Wildfires

Wildfires

Severe Storms, Flooding, Mudslides, and Landslides

How to read this page

Where to, neighbor?

Matches

Nearby