Enter any address in St. Tammany Parish, Louisiana to see its FEMA flood zone
Flash flooding events have been the most frequent type of flood recorded in St. Tammany Parish over the last 30 years. Recent examples include flash floods occurring in January 2024, driven by moisture-rich air from the Gulf of Mexico and atmospheric conditions conducive to severe weather.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced the highest number of claims, with an average payout of $53,785 and an average water depth of 5.9 feet. Zone V properties have also seen significant claims with an average water depth of 7.3 feet. Properties in Zone X_SHADED have also experienced high payouts, averaging $55,462, with an average water depth of 5.3 feet.
Homeowners in Zone A, Zone V, and Zone X_SHADED, as well as those without a Base Flood Elevation (BFE) on record, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
89 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
St. Tammany Parish, Louisiana has recorded 158 flood-related events since 1996 according to NOAA's Storm Events Database, including 123 flash floods and 23 river or area floods. The county has received 49 federal disaster declarations, 11 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1965–2026)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Severe Winter Storm | Winter Storm | Jan 23, 2026 |
| Tropical Storm Francine | Hurricane | Sep 10, 2024 |
| Hurricane Francine | Hurricane | Sep 9, 2024 |
| Tropical Storm Nicholas | Coastal Storm | Sep 12, 2021 |
| Hurricane Ida | Hurricane | Aug 26, 2021 |
| Tropical Storm Ida | Hurricane | Aug 26, 2021 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Hurricane Zeta | Hurricane | Oct 26, 2020 |
| Tropical Storm Zeta | Hurricane | Oct 26, 2020 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Jan 24, 2024 | 0.00K |
| Flash Flood | Jan 24, 2024 | 40.00K |
| Flash Flood | Jan 24, 2024 | 100.00K |
| Flash Flood | Nov 19, 2024 | 0.00K |
| Flash Flood | Nov 19, 2024 | 50.00K |
| Flash Flood | May 16, 2024 | 0.00K |
| Storm Surge/Tide | Jun 16, 2024 | 0.00K |
| Flash Flood | Sep 11, 2024 | 3.00M |
| Tropical Storm | Sep 11, 2024 | 0.00K |
| Tropical Storm | Sep 11, 2024 | 60.00K |
Flash Flood — Jan 24, 2024
For the second time in January, near record atmospheric levels of moisture, for January, was in place across southern Mississippi and southeast Louisiana. Low level convergence aided in the formation of a weak stalled frontal boundary, which became the focus for widespread showers and thunderstorms. Strong diffluence aloft from an approaching upper level jet enhanced storms that did develop. Th...
Flash Flood — Nov 19, 2024
A typical mid fall stronger cold front was moving through the region during the early morning hours of November 19th. As the boundary moved into southeast Louisiana, a surface low began to develop and depend right along the front. This resulted in more significant pressure falls which enhanced already deep showers and thunderstorms. As those storms moved over New Orleans Metro and the northshor...
Flash Flood — May 16, 2024
Continual progressive flow aloft coupled with unstable air ignited thunderstorms across southeastern Texas during the afternoon hours. These storms formed into a linear complex and traversed along a northward advancing warm front draped across the gulf coast. Aided by ample instability and favorable wind shear, this cluster organized into a damaging wind with embedded tornado risk across southe...
Storm Surge/Tide — Jun 16, 2024
As a surface ridge nearby shifted off to the northeast during the 3rd weekend of June, light and variable winds became onshore and more steady state. By June 16th, the surface ridge shifted offshore into the Atlantic Ocean and a surface low pressure was developing as it crossed the Yucatan Peninsula. It was at this point that east to southeast winds increased to 15-20 knots across local coastal...
Flash Flood — Sep 11, 2024
Hurricane Francine formed as a tropical storm in the Gulf of Mexico on September 9, 2024, and intensified into a Category 2 hurricane before making landfall near Houma, Louisiana, on the morning of September 11. With sustained winds of 100 mph and gusts peaking at 105 mph, Francine brought widespread damage to southeastern Louisiana and southern Mississippi. A storm surge of 6-9 feet inundated ...
Source: NOAA National Weather Service Storm Events Database.
Source: OpenFEMA NFIP Individual Claims (2.25M records analyzed).
FEMA assigns flood zone designations to areas in St. Tammany Parish, Louisiana:
AE High Risk — 1% annual chance of flooding. Insurance required.
VE Very High Risk — Coastal flooding with wave action.
X (Shaded) Moderate Risk — 500-year floodplain.
X Low Risk — Outside major floodplains.
Properties in St. Tammany Parish, Louisiana that are in FEMA-designated Special Flood Hazard Areas (zones A and V) with federally backed mortgages are required to carry flood insurance.
Even outside high-risk zones, flood insurance is recommended. From 2014 to 2024, nearly one-third of NFIP claims came from outside the high-risk Special Flood Hazard Area.
Visit FloodSmart.gov to find an agent and get a quote.