Natural hazards · Rose Valley

Rose Valley, PA natural hazards

Most of the natural-hazard damage FEMA expects in Rose Valley comes from inland flooding, and overall the risk is low for a U.S. community. 3 federal disasters brought FEMA money into town.

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

How exposed is Rose Valley?

20
Low
vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Rose Valley to be higher than in 20% of U.S. communities, mostly from inland flooding.

Inland flooding61%Heat waves9%Tornadoes7%Cold waves6%Everything else16%
By hazard

What Rose Valley faces

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

Inland flooding

61% of expected damage
Below average · higher than 39% of U.S. places
Recorded about 5 times a year in the area

Heat waves

9% of expected damage
Well below average · higher than 16% of U.S. places
Recorded about 11 times a year in the area

Tornadoes

7% of expected damage
Above average · higher than 50% of U.S. places

Cold waves

6% of expected damage
Below average · higher than 37% of U.S. places
Recorded about once a year in the area

Lower here

HurricanesHailIce stormsWinter weatherWildfireEarthquakesLandslidesStrong 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 Rose Valley flood?

FEMA's records show no paid flood insurance claims in Rose Valley.

of homes in flood zones
are insured
of all homes
are insured
No community discount. Rose Valley isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Delaware County.
Disasters that hit Rose Valley

3 federal disasters brought FEMA money here

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

Brought FEMA money into Rose ValleyDeclared for Delaware County only
2021

Remnants of Hurricane Ida

2 households applied for aid
2011

Tropical Storm Lee

1 household applied for aid
2011

Hurricane Irene

2 households applied for aid $880 aid approved
Delaware County has had 20 natural disasters declared since 1953, most often hurricanes and floods.
Around Rose Valley

Rose Valley and the towns around it

Nether Providence: Very low, mostly inland floodingMiddletown: Very low, mostly inland floodingBrookhaven: Moderate, mostly inland floodingSpringfield: Very low, mostly inland floodingSwarthmore: Very low, mostly inland floodingChester: Low, mostly inland floodingRidley: Low, mostly inland floodingUpper Providence: Very low, mostly inland floodingMedia: Very low, mostly inland floodingMarple: Very low, mostly inland floodingAston: Very low, mostly inland floodingChester Heights: Low, mostly inland floodingThornbury: Very low, mostly inland floodingEdgmont: Very low, mostly inland floodingParkside: Low, mostly inland floodingChester: High, mostly inland floodingUpland: Moderate, mostly inland floodingRose Valley: Low, mostly inland flooding Rose ValleyNether ProvidenceMiddletownBrookhaven
Very lowLowModerateHighVery high
Brookhavenmostly inland floodingModerate
Rose Valleymostly inland floodingLow
Nether Providencemostly inland floodingVery low
Middletownmostly 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. Rose Valley is smaller than a census tract, so it shares the figures of the tract around its center.
Money that reached townFlood claims are matched to Rose Valley’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Borough of Rose Valley. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

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.

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Boundary source: https://tigerweb.geo.census.gov/arcgis/rest/services/TIGERweb/Places_CouSub_ConCity_SubMCD/MapServer/18 · 2025-01-01