Fort Crailo · Photo: UpstateNYer · CC BY-SA 3.0On FEMA’s figures, Rensselaer faces about as much hazard damage per building as the typical U.S. town, mostly from river and rain flooding
On FEMA’s National Risk Index, Rensselaer gets a B− for hazard risk: higher expected damage per building than 54% of U.S. towns, #545 of 758 in New York. Most of that expected damage is river and rain flooding (92%). Flood insurance has paid 52 claims here since 1995.
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 stands out about Rensselaer’s natural hazards
From FEMA’s model and FEMA’s records, below.
What Rensselaer 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
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 Rensselaer’s grade
River and rain flooding is 92% of the building damage FEMA expects in Rensselaer, and Rensselaer’s rate of river and rain flooding damage is higher than 75% of U.S. census tracts.
B− #545 of 758 in New York; higher expected damage per building than 54% of U.S. towns (21,298).
Rensselaer’s residents live in 3 census tracts; FEMA’s figures are combined by where they live.
The typical New York town has lower expected damage than 69% of U.S. towns; within the state, Rensselaer has more expected damage per building than 72% of New York towns.
In dollars, FEMA expects about $2.5M a year in losses across Rensselaer: $2.0M to buildings, the rest to people and crops.
Does Rensselaer flood? Sometimes: 52 flood claims since 1995
Every paid claim on a federal flood insurance policy in Rensselaer, from FEMA’s records: 10.6 per 1,000 homes, more than 75% of the 13,809 U.S. towns with a flood insurance record.
- The December nor’easter4 claims · $45K
- Hurricane Irene3 claims · $25K
- Hurricane Floyd1 claim · $16K
Rensselaer isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.
Insurance rates: Rensselaer County.1 federal disaster brought FEMA money to Rensselaer
Disasters that paid out in Rensselaer itself (aid to households or repair grants to the City of Rensselaer), newest first, with that year’s flood claims.
- 2011Hurricane Irene71 households applied for aid$108K aid approved3 flood claims paid for it, $25K
Rensselaer County has had 21 natural disasters declared by the President since 1953, most often severe storms, then hurricanes and tropical storms. Not counted: the 2005 Hurricane Katrina evacuee emergency, which covered counties that took in evacuees; the 2001 World Trade Center declarations.
Old photos of Rensselaer after a storm or flood belong in the town’s history. Add one, or share what you remember below.
Add to the Rensselaer archive →Rensselaer and its neighbors
Rensselaer is 4th of the 4 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 |
|---|---|---|---|
| East Greenbush | A−less damage than 79% | river and rain flooding | 6 |
| Albany | A−less damage than 77% | river and rain flooding | 50 |
| North Greenbush | A−less damage than 76% | river and rain flooding | 16 |
| Rensselaer | B−more damage than 54% | river and rain flooding | 52 |
| Hampton Manor | — | a Census area inside a town; graded with the town | |
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 Rensselaer 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.
- 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 Rensselaer
Is Rensselaer at risk for natural disasters?
On FEMA’s National Risk Index, Rensselaer has higher expected damage per building than 54% of U.S. towns: B− for hazard risk, #545 of 758 in New York. Most of the expected damage is river and rain flooding (92%). This is FEMA’s model of an average year for today’s buildings, not a forecast.
Does Rensselaer flood?
Flood insurance has paid 52 claims in Rensselaer since 1995, $456K in all, or 10.6 per 1,000 homes, more than 75% of U.S. towns with a flood insurance record. 8 properties have flooded more than once. The most claims came from December Nor'easter (4).
Is Rensselaer 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 Rensselaer County, 1.1% of all homes carry federal flood insurance.
How much is flood insurance in Rensselaer?
FEMA’s Community Rating System list shows no discount for Rensselaer’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 Rensselaer?
By FEMA money that reached Rensselaer, Hurricane Irene (2011): 71 households applied for aid, $108K approved. By flood claims, December Nor'easter: 4 paid, $45K.
Is Rensselaer at risk from river and rain flooding?
It is the largest share of the building damage FEMA expects here (92%), and Rensselaer’s rate for it is higher than 75% of U.S. census tracts.
Storm stories
Memories, warnings and help from neighbors in Rensselaer.
Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Rensselaer’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.