Flood history · Hahnville, LA 70057
Flood insurance claims in Hahnville, LA 70057
146 claims since 1980 and $2.8 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 70057 since 1978.
What the record says
About 100% of claims here were on properties rated outside high-risk zones (zones X, B or C). A lower-risk zone on the map is not a guarantee.
Losses are spread across many events; the largest, Hurricane Katrina, accounts for 27% of claims.
Flooding here is recent: 73 claims (50%) were 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.
St. Charles Parish* takes part in FEMA's Community Rating System (class 6), which can lower flood insurance premiums by up to 20% in high-risk zones.
Biggest flood events
| Event | Year | Claims | Share |
|---|---|---|---|
| Hurricane Katrina | 2005 | 40 | 27% |
| Hurricane Ida | 2021 | 20 | 14% |
| Unnamed flooding | 1995 | 15 | 10% |
| Hurricane Isaac | 2012 | 10 | 7% |
| Hurricane Francine | 2024 | 8 | 5% |
| 2026-06-Arthur-TS | 2026 | 3 | 2% |
Flood zone at time of claim
NFIP communities
Federal disaster declarations in St. Charles County
Flood, hurricane and storm declarations since 2000.
36 flood, storm or hurricane declarations for St. Charles County since 2000.
Check a specific address in Hahnville.
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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