Photo: Montgomery County Planning Commission · CC BY-SA 2.0FEMA puts East Greenville’s expected hazard damage per building below that of 93% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, East Greenville gets an A for hazard risk: lower expected damage per building than 93% of U.S. towns, #165 of 1,037 in Pennsylvania. Most of that expected damage is river and rain flooding (81%). Flood insurance has paid 1 claim here since 1984.
Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded
What East Greenville faces
Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.
River and rain flooding
Earthquakes
Tornadoes
Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.
What’s behind East Greenville’s grade
River and rain flooding is 81% of the building damage FEMA expects in East Greenville, and East Greenville’s rate of river and rain flooding damage is lower than 75% of U.S. census tracts. Next is earthquakes at 8% (higher than 61% of U.S. census tracts).
A #165 of 1,037 in Pennsylvania; lower expected damage per building than 93% of U.S. towns (21,298).
All of East Greenville’s residents live in one census tract; the figures are that tract’s.
The typical Pennsylvania town has lower expected damage than 71% of U.S. towns; within the state, East Greenville has less expected damage per building than 84% of Pennsylvania towns.
In dollars, FEMA expects about $644K a year in losses across East Greenville: $391K to buildings, the rest to people and crops.
Does East Greenville flood? Rarely: 1 flood claim since 1984
Every paid claim on a federal flood insurance policy in East Greenville, from FEMA’s records: 0.8 per 1,000 homes, fewer than 83% of the 13,809 U.S. towns with a flood insurance record.
East Greenville 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.1 federal disaster brought FEMA money to East Greenville
Disasters that paid out in East Greenville itself (aid to households or repair grants to the Borough of East Greenville), newest first, with that year’s flood claims.
- 2021Remnants of Hurricane Ida13 households applied for aid$41K aid approved
Montgomery County has had 23 natural disasters declared by the President since 1953, most often severe storms, then floods. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees.
Old photos of East Greenville after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the East Greenville archive →East Greenville and its neighbors
East Greenville is 2nd of the 2 graded towns here, from least expected damage per building to most. Tap a town to see its hazards.
| Town | Hazard risk | Mostly (buildings) | Flood claims |
|---|---|---|---|
| Pennsburg | Aless damage than 93% | river and rain flooding | — |
| East Greenville | Aless damage than 93% | river and rain flooding | 1 |
Hazard risk = FEMA’s expected yearly building damage per dollar of building value, vs. the 21,298 U.S. towns we grade; the map is shaded by fifths of the same scale. Flood claims = paid federal flood insurance claims on record.
Get ready for what East Greenville faces
A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.
- Turn around at flooded roads: a foot of moving water can carry off a car.
- Flood insurance usually takes 30 days to start, so buy it before the forecast.
- Keep papers and medicines up high, in a grab-and-go bag.
- Drop, cover and hold on.
- Strap tall furniture and the water heater to the wall.
- Know how to shut off the gas.
- Pick your spot now: the lowest floor, an inside room, no windows.
- A watch means be ready; a warning means take cover now.
- Keep shoes and a flashlight by the bed.
- Look up the address on FEMA’s flood map.
- Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
- Get a flood insurance quote early: policies usually start 30 days after you buy.
Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.
Questions about natural hazards in East Greenville
Is East Greenville at risk for natural disasters?
On FEMA’s National Risk Index, East Greenville has lower expected damage per building than 93% of U.S. towns: A for hazard risk, #165 of 1,037 in Pennsylvania. Most of the expected damage is river and rain flooding (81%) and earthquakes (8%). The figures are for the one census tract the town shares with its neighbors. This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does East Greenville flood?
Flood insurance has paid 1 claim in East Greenville since 1984, $7K in all, or 0.8 per 1,000 homes, fewer than 83% of U.S. towns with a flood insurance record.
Is East Greenville in a flood zone?
Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In Montgomery County, 47% of homes in mapped flood zones carry federal flood insurance, and 0.9% of all homes do.
How much is flood insurance in East Greenville?
FEMA’s Community Rating System list shows no discount for East Greenville’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.
What was the biggest storm in East Greenville?
By FEMA money that reached East Greenville, Remnants of Hurricane Ida (2021): 13 households applied for aid, $41K approved.
Is East Greenville at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (81%), and East Greenville’s rate for it is lower than 75% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in East Greenville.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where East Greenville’s residents lived in the 2020 census; 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. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.