Natural hazards · Allen

Allen, PA natural hazards

Most of the natural-hazard damage FEMA expects in Allen comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 4 claims here since 2004.

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

Expected damage

How exposed is Allen?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Allen to be higher than in 45% of U.S. communities, mostly from inland flooding.

Inland flooding72%Hurricanes6%Tornadoes5%Heat waves5%Everything else12%

By hazard

What Allen faces

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

Inland flooding

72% of expected damage

Above average · higher than 69% of U.S. places

Recorded about 3 times a year in the area

Hurricanes

6% of expected damage

Above average · higher than 73% of U.S. places

Recorded about once every 17 years in the area

Tornadoes

5% of expected damage

Above average · higher than 51% of U.S. places

Heat waves

5% of expected damage

Well below average · higher than 14% of U.S. places

Recorded about 6 times a year in the area

Lower here

HailIce stormsWinter weatherCold wavesWildfireEarthquakesLandslidesStrong windLightningDroughtAvalanches

Not a risk here

Coastal floodingTsunamisVolcanic 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 Allen flood?

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

4paid claims since 2004

$38Kpaid to owners

1homes flooded more than once

20042026

Biggest named events

Hurricane Isaias: 1 claim, $20K
Tropical Storm Ivan: 1 claim, $8K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Northampton County.

Disasters that hit Allen

Federal disasters declared here

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

Brought FEMA money into AllenDeclared for Northampton County only

Northampton County has had 19 natural disasters declared since 1953, most often severe storms and hurricanes.

Around Allen

Allen and the towns around it

Very lowLowModerateHighVery high

North Catasauquamostly inland floodingHigh

Northamptonmostly inland floodingModerate

Allenmostly inland floodingModerate

East Allenmostly inland floodingLow

Lehighmostly inland floodingLow

Mooremostly inland floodingLow

North Whitehallmostly 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. Allen covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Allen’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Allen. 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 Allen total about $1.8M 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.