Flood history · Dayton, WA 99328
Flood insurance claims in Dayton, WA 99328
55 claims since 1978 and $501,325 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 99328 since 1978.
What the record says
86% of claims were on properties in high-risk zones and 14% outside them.
16 claims were filed in the last 10 years.
The most commonly recorded cause is rivers, streams or lakes overflowing.
Biggest flood events
| Event | Year | Claims | Share |
|---|---|---|---|
| Unnamed flooding | 1997 | 19 | 35% |
Flood zone at time of claim
NFIP communities
Federal disaster declarations in Columbia County
Flood, hurricane and storm declarations since 2000.
6 flood, storm or hurricane declarations for Columbia County since 2000.
Check a specific address in Dayton.
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.
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