Natural hazards · Uwchlan

Uwchlan, PA natural hazards

Most of the natural-hazard damage FEMA expects in Uwchlan comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 6 claims here since 2003.

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

Expected damage

How exposed is Uwchlan?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Uwchlan to be higher than in 7% of U.S. communities, mostly from inland flooding.

Inland flooding58%Tornadoes8%Heat waves7%Earthquakes7%Cold waves6%Hurricanes5%Everything else9%

By hazard

What Uwchlan faces

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

Inland flooding

58% of expected damage

Well below average · higher than 16% of U.S. places

Recorded about 5 times a year in the area

Tornadoes

8% of expected damage

Below average · higher than 47% of U.S. places

Heat waves

7% of expected damage

Well below average · higher than 15% of U.S. places

Recorded about 8 times a year in the area

Earthquakes

7% of expected damage

Above average · higher than 57% of U.S. places

Cold waves

6% of expected damage

Below average · higher than 36% of U.S. places

Recorded about once a year in the area

Hurricanes

5% of expected damage

Above average · higher than 65% of U.S. places

Recorded about once every 12 years in the area

Lower here

HailIce stormsWinter weatherWildfireLandslidesStrong windLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Uwchlan flood?

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

6paid claims since 2003

$33Kpaid to owners

1homes flooded more than once

20032026

Biggest named events

Hurricane Ida: 1 claim, $13K
Hurricane Isabel: 1 claim, $5K

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. Uwchlan isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: Chester County.

Disasters that hit Uwchlan

Federal disasters declared here

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

Brought FEMA money into UwchlanDeclared for Chester County only

Chester County has had 22 natural disasters declared since 1953, most often hurricanes and floods.

Around Uwchlan

Uwchlan and the towns around it

Very lowLowModerateHighVery high

West Pikelandmostly inland floodingModerate

Upper Uwchlanmostly inland floodingVery low

East Brandywinemostly inland floodingVery low

West Whitelandmostly inland floodingVery low

East Calnmostly inland floodingVery low

Charlestownmostly inland floodingVery low

Uwchlanmostly 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. Uwchlan covers 4 census tracts, combined by population.

Money that reached townFlood claims are matched to Uwchlan’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Uwchlan. 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 Uwchlan total about $4.5M 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.