Flood history · Florissant, MO 63033
Flood insurance claims in Florissant, MO 63033
155 claims since 1979 and $661,567 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 63033 since 1978.
What the record says
80% of claims were on properties in high-risk zones and 20% outside them.
Losses are spread across many events; the largest, Unnamed flooding, accounts for 9% of claims.
13 claims were filed in the last 10 years.
The most commonly recorded cause is rivers, streams or lakes overflowing.
Florissant, City Of takes part in FEMA's Community Rating System (class 9), which can lower flood insurance premiums by up to 05% in high-risk zones.
Biggest flood events
| Event | Year | Claims | Share |
|---|---|---|---|
| Unnamed flooding | 1995 | 14 | 9% |
| Hurricane Ike | 2008 | 13 | 8% |
| Not a named storm | 1982 | 9 | 6% |
| Midwest Flooding | 1993 | 7 | 5% |
| Late spring severe storms | 2017 | 3 | 2% |
| Early winter storms | 2015 | 3 | 2% |
Flood zone at time of claim
NFIP communities
Federal disaster declarations in St. Louis County
Flood, hurricane and storm declarations since 2000.
18 flood, storm or hurricane declarations for St. Louis County since 2000.
Check a specific address in Florissant.
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.