Photo: Shuvaev · CC BY-SA 3.0FEMA puts East Norriton Township’s expected hazard damage per building below that of 82% of U.S. towns, mostly from river and rain flooding
On FEMA’s National Risk Index, East Norriton Township gets an A− for hazard risk: lower expected damage per building than 82% of U.S. towns, #383 of 1,037 in Pennsylvania. Most of that expected damage is river and rain flooding (82%). Flood insurance has paid 18 claims here since 1978.
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 Norriton Township 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
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 Norriton Township’s grade
River and rain flooding is 82% of the building damage FEMA expects in East Norriton Township, and East Norriton Township’s rate of river and rain flooding damage is lower than 59% of U.S. census tracts. Next is earthquakes at 7% (higher than 62% of U.S. census tracts).
A− #383 of 1,037 in Pennsylvania; lower expected damage per building than 82% of U.S. towns (21,298).
East Norriton Township’s residents live in 3 census tracts; FEMA’s figures are combined by where they live.
The typical Pennsylvania town has lower expected damage than 71% of U.S. towns; within the state, East Norriton Township has less expected damage per building than 63% of Pennsylvania towns.
In dollars, FEMA expects about $4.5M a year in losses across East Norriton Township: $2.9M to buildings, the rest to people and crops.
Does East Norriton Township flood? Sometimes: 18 flood claims since 1978
Every paid claim on a federal flood insurance policy in East Norriton Township, from FEMA’s records: 2.8 per 1,000 homes, fewer than 54% of the 13,809 U.S. towns with a flood insurance record.
- Hurricane Ida6 claims · $192K
- Hurricane Irene2 claims · $13K
- Hurricane Isaias1 claim · $2K
East Norriton Township 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.3 federal disasters brought FEMA money to East Norriton Township
Disasters that paid out in East Norriton Township itself (aid to households or repair grants to East Norriton Township), newest first, with that year’s flood claims.
- 2021Remnants of Hurricane Ida25 households applied for aid$107K aid approved6 flood claims paid for it, $192K
- 2011Tropical Storm Lee2 households applied for aid$3K aid approved
- 2011Hurricane Irene5 households applied for aid$14K aid approved2 flood claims paid for it, $13K
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 Norriton Township after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the East Norriton Township archive →East Norriton Township and its neighbors
East Norriton Township is 2nd of the 6 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 |
|---|---|---|---|
| Worcester Township | Aless damage than 87% | river and rain flooding | 4 |
| East Norriton Township | A−less damage than 82% | river and rain flooding | 18 |
| Whitpain Township | A−less damage than 77% | river and rain flooding | 32 |
| Plymouth Township | B+less damage than 70% | river and rain flooding | 339 |
| West Norriton Township | B−more damage than 55% | river and rain flooding | 642 |
| Norristown | Cmore damage than 67% | river and rain flooding | 165 |
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 Norriton Township 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.
- 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 Norriton Township
Is East Norriton Township at risk for natural disasters?
On FEMA’s National Risk Index, East Norriton Township has lower expected damage per building than 82% of U.S. towns: A− for hazard risk, #383 of 1,037 in Pennsylvania. Most of the expected damage is river and rain flooding (82%) and earthquakes (7%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does East Norriton Township flood?
Flood insurance has paid 18 claims in East Norriton Township since 1978, $235K in all, or 2.8 per 1,000 homes, fewer than 54% of U.S. towns with a flood insurance record. 2 properties have flooded more than once. The most claims came from Hurricane Ida (6).
Is East Norriton Township 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 Norriton Township?
FEMA’s Community Rating System list shows no discount for East Norriton Township’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 Norriton Township?
By FEMA money that reached East Norriton Township, Remnants of Hurricane Ida (2021): 25 households applied for aid, $107K approved. By flood claims, Hurricane Ida: 6 paid, $192K.
Is East Norriton Township at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (82%), and East Norriton Township’s rate for it is lower than 59% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in East Norriton Township.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where East Norriton Township’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.