Natural hazards · Danville

Danville, CA natural hazards

Most of the natural-hazard damage FEMA expects in Danville comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 3 claims here since 2002. 3 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Danville?

Very high

vs. U.S. communities

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

Inland flooding50%Earthquakes47%Everything else3%

By hazard

What Danville faces

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

Inland flooding

50% of expected damage

Well above average · higher than 94% of U.S. places

Recorded about once a year in the area

Earthquakes

47% of expected damage

Well above average · higher than 95% of U.S. places

Lower here

TornadoesHailWinter weatherHeat wavesWildfireLandslidesStrong windLightningVolcanic activity

Not a risk here

Coastal floodingHurricanesIce 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 Danville flood?

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

3paid claims since 2002

$37Kpaid to owners

0homes flooded more than once

20022026

Biggest named events

California Atmospheric River: 1 claim, $1K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Contra Costa County.

Disasters that hit Danville

3 federal disasters brought FEMA money here

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

Brought FEMA money into DanvilleDeclared for Contra Costa County only

2022

Severe Winter Storms, Flooding, Landslides, and Mudslides

198 households applied for aid $736K aid approved $326K to the Town of Danville for repairs

2017

Severe Winter Storms, Flooding, and Mudslides

$431K to the Town of Danville for repairs

2005

Severe Storms, Flooding, Mudslides, and Landslides

2 households applied for aid $14K aid approved $510K to the Town of Danville for repairs

Contra Costa County has had 17 natural disasters declared since 1953, most often floods and severe storms.

Around Danville

Danville and the towns around it

Very lowLowModerateHighVery high

San Ramonmostly inland floodingVery high

Danvillemostly inland floodingVery high

Camino Tassajaramostly inland floodingVery high

Diablomostly earthquakesVery high

Blackhawkmostly earthquakesVery high

Alamomostly earthquakesVery high

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. Danville covers 7 census tracts, combined by population.

Money that reached townFlood claims are matched to Danville’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Danville. 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 Danville total about $30.4M 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.