Enter any address in St. John the Baptist Parish, Louisiana to see its FEMA flood zone
St. John the Baptist Parish County experiences a mix of flood events, with tropical storms and storm surge/tide being the most frequent over the last 30 years. Recent events include flash flooding in January 2024, driven by moisture-rich air from the Gulf of Mexico, and significant impacts from Hurricane Francine in September 2024, which brought a storm surge of 6-9 feet and 10-15 inches of rainfall causing widespread flash flooding.
The National Flood Insurance Program data indicates that properties in Zone A have experienced the highest number of claims, with an average payout of $88,927 and an average water depth of 4.2 feet. Properties in Zone X and Zone X_SHADED also show substantial claim activity. Homeowners in low-lying coastal areas, as well as those in Zone A or without a Base Flood Elevation (BFE), should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
38 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
St. John the Baptist Parish, Louisiana has recorded 61 flood-related events since 1996 according to NOAA's Storm Events Database, including 11 flash floods and 4 river or area floods. The county has received 46 federal disaster declarations, 8 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 |
|---|---|---|
| Storm Surge/Tide | Jun 16, 2024 | 0.00K |
| Flash Flood | Sep 11, 2024 | 10.00M |
| Tropical Storm | Sep 11, 2024 | 1.00M |
| Storm Surge/Tide | Sep 11, 2024 | 0.00K |
| Flash Flood | Apr 10, 2024 | 0.00K |
| Flash Flood | Jan 8, 2024 | 20.00K |
| Flash Flood | Feb 3, 2022 | 0.00K |
| Storm Surge/Tide | Aug 29, 2021 | 100.00M |
| Hurricane (Typhoon) | Aug 29, 2021 | 500.00M (1 deaths) |
| Coastal Flood | May 19, 2021 | 0.00K |
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 ...
Tropical Storm — 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 ...
Storm Surge/Tide — 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 ...
Flash Flood — Apr 10, 2024
A strong upper level disturbance, surface low, and cold front produced a line of severe thunderstorms that pushed across Southeast Louisiana and Southern Mississippi in the morning and early afternoon hours of Wednesday, April 10, 2024. The line of severe thunderstorms produced strong straight line winds, extensive flash flooding in the New Orleans metro area and several tornadoes. The stronge...
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. John the Baptist 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. John the Baptist 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.