Natural hazards · Collier

Collier, PA natural hazards

Most of the natural-hazard damage FEMA expects in Collier comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 34 claims here since 1979.

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

Expected damage

How exposed is Collier?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Collier to be higher than in 16% of U.S. communities, mostly from inland flooding.

Inland flooding83%Cold waves9%Everything else8%

By hazard

What Collier faces

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

Inland flooding

83% of expected damage

Below average · higher than 44% of U.S. places

Recorded about 7 times a year in the area

Cold waves

9% of expected damage

Below average · higher than 37% of U.S. places

Recorded about 3 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic 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 Collier flood?

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

34paid claims since 1979

$784Kpaid to owners

7homes flooded more than once

19792026

Biggest named events

Hurricane Ida: 4 claims, $36K
Tropical Storm Ivan: 4 claims, $16K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (1) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Allegheny County.

Disasters that hit Collier

Federal disasters declared here

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

Brought FEMA money into CollierDeclared for Allegheny County only

Allegheny County has had 16 natural disasters declared since 1953, most often floods and severe storms.

Around Collier

Collier and the towns around it

Very lowLowModerateHighVery high

Heidelbergmostly inland floodingHigh

Bridgevillemostly inland floodingModerate

Colliermostly inland floodingVery low

South Fayettemostly inland floodingVery low

Scottmostly inland floodingVery low

North Fayettemostly inland floodingVery low

Robinsonmostly inland floodingVery low

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. Collier covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Collier’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Collier. 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 Collier total about $2.5M 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.