Natural hazards · Glendora

Glendora, CA natural hazards

Most of the natural-hazard damage FEMA expects in Glendora comes from earthquakes, and overall the risk is very high for a U.S. community. Flood insurance has paid 8 claims here since 1980. 6 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Glendora?

Very high

vs. U.S. communities

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

Earthquakes50%Inland flooding38%Wildfire7%Everything else5%

By hazard

What Glendora faces

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

Earthquakes

50% of expected damage

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

Inland flooding

38% of expected damage

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

Recorded about 4 times a year in the area

Wildfire

7% of expected damage

Well above average · higher than 96% of U.S. places

Lower here

TornadoesHailWinter weatherCold wavesHeat wavesLandslidesStrong windLightningAvalanches

Not a risk here

Coastal floodingHurricanesIce stormsDroughtTsunamisVolcanic 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 Glendora flood?

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

8paid claims since 1980

$239Kpaid to owners

0homes flooded more than once

19802026

Biggest named events

Pineapple Express - Southern: 1 claim, $3K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Los Angeles County.

Disasters that hit Glendora

6 federal disasters brought FEMA money here

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

Brought FEMA money into GlendoraDeclared for Los Angeles County only

2025

Wildfires and Straight-Line Winds

145 households applied for aid $13K aid approved

2020

Wildfires

16 households applied for aid

2017

Wildfires, Flooding, Mudflows, and Debris Flows

1 household applied for aid

2017

Severe Winter Storms, Flooding, and Mudslides

$109K to the City of Glendora for repairs

2004

Severe Storms, Flooding, Debris Flows, and Mudslides

9 households applied for aid $666 aid approved $8K to the City of Glendora for repairs

2003

Wildfires, Flooding, Mudflow and Debris Flow Directly Related T

2 households applied for aid $887 aid approved

Los Angeles County has had 74 natural disasters declared since 1953, most often fires and floods.

Around Glendora

Glendora and the towns around it

Very lowLowModerateHighVery high

Glendoramostly earthquakesVery high

Azusamostly earthquakesVery high

Covinamostly earthquakesVery high

San Dimasmostly earthquakesVery high

Citrusmostly earthquakesVery high

Charter Oakmostly 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. Glendora covers 12 census tracts, combined by population.

Money that reached townFlood claims are matched to Glendora’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Glendora. 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 Glendora total about $43.0M 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.