Natural hazards · Tustin

Tustin, CA natural hazards

Most of the natural-hazard damage FEMA expects in Tustin comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 1 claim here since 1998. 4 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Tustin?

Very high

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Tustin to be higher than in 88% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding53%Earthquakes46%Everything else1%

By hazard

What Tustin faces

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

Inland flooding

53% of expected damage

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

Recorded about 3 times a year in the area

Earthquakes

46% of expected damage

Well above average · higher than 92% of U.S. places

Lower here

TornadoesHailHeat wavesWildfireLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingHurricanesIce stormsWinter weatherCold wavesAvalanchesTsunamisVolcanic activity

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 Tustin flood?

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

1paid claims since 1998

$2Kpaid to owners

0homes flooded more than once

19982026

Biggest named events

Pineapple Express - Southern: 1 claim, $2K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Orange County.

Disasters that hit Tustin

4 federal disasters brought FEMA money here

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

Brought FEMA money into TustinDeclared for Orange County only

2017

Wildfires

55 households applied for aid $500 aid approved $16K to the City of Tustin for repairs

2010

Severe Winter Storms, Flooding, and Debris and Mud Flows

$7K to the City of Tustin for repairs

2007

Wildfires, Flooding, Mud Flows, and Debris Flows

5 households applied for aid $21K to the City of Tustin for repairs

2004

Severe Storms, Flooding, Debris Flows, and Mudslides

3 households applied for aid $1K aid approved

Orange County has had 36 natural disasters declared since 1953, most often fires and floods.

Around Tustin

Tustin and the towns around it

Very lowLowModerateHighVery high

Tustinmostly inland floodingVery high

Irvinemostly inland floodingVery high

Orangemostly earthquakesVery high

Santa Anamostly earthquakesVery high

North Tustinmostly inland floodingVery 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. Tustin covers 14 census tracts, combined by population.

Money that reached townFlood claims are matched to Tustin’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Tustin. 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 Tustin total about $45.7M 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.