Natural hazards · Casa Grande

Casa Grande, AZ natural hazards

Most of the natural-hazard damage FEMA expects in Casa Grande comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 8 claims here since 1979.

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

Expected damage

How exposed is Casa Grande?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Casa Grande to be higher than in 47% of U.S. communities, mostly from inland flooding and heat waves.

Inland flooding70%Heat waves22%Everything else9%

By hazard

What Casa Grande faces

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

Inland flooding

70% of expected damage

Well above average · higher than 75% of U.S. places

Recorded about 4 times a year in the area

Heat waves

22% of expected damage

Well below average · higher than 6% of U.S. places

Recorded about 21 times a year in the area

Lower here

HurricanesTornadoesHailWinter weatherWildfireEarthquakesLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingIce stormsCold 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 Casa Grande flood?

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

8paid claims since 1979

$211Kpaid to owners

0homes flooded more than once

19792026

of homes in flood zones
are insured

of all homes
are insured

🏷️ 10% off flood insurance. Casa Grande is in FEMA’s Community Rating System (class 8) for its flood-proofing work.

Insurance rates: Pinal County.

Disasters that hit Casa Grande

Federal disasters declared here

None of the disasters declared for Pinal County shows FEMA aid or repair money reaching Casa Grande itself in FEMA’s records.

Brought FEMA money into Casa GrandeDeclared for Pinal County only

Pinal County has had 21 natural disasters declared since 1953, most often fires and floods.

Around Casa Grande

Casa Grande and the towns around it

Very lowLowModerateHighVery high

Maricopamostly inland floodingHigh

Casa Grandemostly inland floodingModerate

Eloymostly inland floodingLow

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. Casa Grande covers 12 census tracts, combined by population.

Money that reached townFlood claims are matched to Casa Grande’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Casa Grande. 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 Casa Grande total about $13.7M 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.