Natural hazards · Conshohocken

Conshohocken, PA natural hazards

Most of the natural-hazard damage FEMA expects in Conshohocken comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 106 claims here since 1978. 6 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Conshohocken?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Conshohocken to be higher than in 70% of U.S. communities, mostly from inland flooding.

Inland flooding83%Everything else17%

By hazard

What Conshohocken 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

Well above average · higher than 88% of U.S. places

Recorded about 6 times a year in the area

Lower here

HurricanesTornadoesHailIce stormsWinter weatherCold wavesHeat 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 Conshohocken flood?

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

106paid claims since 1978

$8.3Mpaid to owners

16homes flooded more than once

19782026

Biggest named events

Hurricane Ida: 24 claims, $3.1M
Hurricane Floyd: 12 claims, $1.6M
Hurricane Irene: 10 claims, $190K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (4) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Montgomery County.

Disasters that hit Conshohocken

6 federal disasters brought FEMA money here

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

Brought FEMA money into ConshohockenDeclared for Montgomery County only

2021

Remnants of Hurricane Ida

182 households applied for aid $564K aid approved

2011

Tropical Storm Lee

10 households applied for aid $14K aid approved

2011

Hurricane Irene

54 households applied for aid $72K aid approved

2006

Severe Storms, Flooding, and Mudslides

3 households applied for aid $10K aid approved

2004

Tropical Depression Ivan

12 households applied for aid $27K aid approved

2004

Severe Storms and Flooding

5 households applied for aid $6K aid approved

Montgomery County has had 24 natural disasters declared since 1953, most often hurricanes and floods.

Around Conshohocken

Conshohocken and the towns around it

Very lowLowModerateHighVery high

Conshohockenmostly inland floodingHigh

West Conshohockenmostly inland floodingHigh

Whitemarshmostly inland floodingModerate

Plymouthmostly inland floodingLow

Lower Merionmostly 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. Conshohocken covers 3 census tracts, combined by population.

Money that reached townFlood claims are matched to Conshohocken’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Borough of Conshohocken. 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 Conshohocken total about $6.6M 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.