Flood history · Millbrae, CA 94030
Flood insurance claims in Millbrae, CA 94030
55 claims since 1978 and $419,990 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 94030 since 1978.
What the record says
72% of claims were on properties in high-risk zones and 28% outside them.
Losses are spread across many events; the largest, Unnamed flooding, accounts for 27% of claims.
11 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.
Biggest flood events
| Event | Year | Claims | Share |
|---|---|---|---|
| Unnamed flooding | 1982 | 15 | 27% |
| California Atmospheric River | 2022 | 1 | 2% |
| Pineapple Express - Southern | 1998 | 1 | 2% |
Flood zone at time of claim
NFIP communities
Federal disaster declarations in San Mateo County
Flood, hurricane and storm declarations since 2000.
9 flood, storm or hurricane declarations for San Mateo County since 2000.
Check a specific address in Millbrae.
ZIP-level history is the backdrop. See the official FEMA flood zone, ground elevation and next steps for one property, free.
Nearby California ZIP codes
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.
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