Flood history · Mamaroneck, NY 10543
Flood insurance claims in Mamaroneck, NY 10543
2,219 claims since 1978 and $65.5 million paid. Here's what the public record shows, and how to check a specific address.
Claims by year
Every NFIP flood insurance claim reported in ZIP 10543 since 1978.
What the record says
76% of claims were on properties in high-risk zones and 24% outside them.
Losses are spread across many events; the largest, Not a named storm, accounts for 17% of claims.
500 claims were filed in the last 10 years.
The most commonly recorded cause is heavy rain or snowmelt collecting faster than it drains, which can happen far from any river or coast.
Mamaroneck, Village Of takes part in FEMA's Community Rating System (class 8), which can lower flood insurance premiums by up to 10% in high-risk zones.
Biggest flood events
| Event | Year | Claims | Share |
|---|---|---|---|
| Not a named storm | 1980 | 367 | 17% |
| Hurricane Ida | 2021 | 311 | 14% |
| Hurricane Irene | 2011 | 241 | 11% |
| April 2007 Nor'easter | 2007 | 237 | 11% |
| Unnamed flooding | 1978 | 126 | 6% |
| Late-September New York Flooding | 2023 | 123 | 6% |
Flood zone at time of claim
NFIP communities
Federal disaster declarations in Westchester County
Flood, hurricane and storm declarations since 2000.
15 flood, storm or hurricane declarations for Westchester County since 2000.
Check a specific address in Mamaroneck.
ZIP-level history is the backdrop. See the official FEMA flood zone, ground elevation and next steps for one property, free.
Sources: FEMA OpenFEMA NFIP Redacted Claims (v3) and Disaster Declarations Summaries, FEMA NFIP Community Status Book; place names from GeoNames (CC BY 4.0). Data as of 2026-10-09. Payments are net building + contents payments in dollars at the time paid, not adjusted for inflation. Claims are grouped by the ZIP code reported on the claim. This product uses the FEMA OpenFEMA API but is not endorsed by FEMA. Information only; not an official flood zone determination or insurance advice.