Enter any address in St. Charles Parish, Louisiana to see its FEMA flood zone
Flash flooding from slow-moving thunderstorms is the most frequent type of flood event recorded in St. Charles Parish County over the last 30 years, with 56 occurrences. Recent examples include flash flooding on June 14, 2025, and July 17, 2025, which inundated streets and caused water to enter homes in several communities.
National Flood Insurance Program (NFIP) data shows that Zone A properties have experienced the highest number of claims, with an average payout of $24,242 for 1.1 feet of water depth. Properties in Zone X and Zone X_Shaded also have a history of claims. Homeowners in these zones, particularly those without elevated foundations or those located in low-lying areas, should pay close attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
55 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
St. Charles Parish, Louisiana has recorded 103 flood-related events since 1996 according to NOAA's Storm Events Database, including 56 flash floods and 5 river or area floods. The county has received 51 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 | Jul 17, 2025 | 700.00K |
| Flash Flood | Jul 17, 2025 | 10.00K |
| Flash Flood | Jun 14, 2025 | 0.00K |
| Flash Flood | Jul 17, 2024 | 0.00K |
| Storm Surge/Tide | Jun 16, 2024 | 0.00K |
| Flash Flood | Sep 11, 2024 | 52.50M |
| Tropical Storm | Sep 11, 2024 | 1.00M |
| Storm Surge/Tide | Sep 11, 2024 | 0.00K |
| Flash Flood | Apr 10, 2024 | 0.00K |
| Flash Flood | Sep 6, 2024 | 0.00K |
Flash Flood — Jul 17, 2025
A weak surface low developed along a stalled boundary near New Orleans on July 17, 2025, providing a focus for slow-moving thunderstorms. Heavy rainfall led to flash flooding across St. Charles Parish, where numerous streets in LaPlace, Destrehan, and New Sarpy were inundated. Broadcast media also reported stalled vehicles on Ormond Boulevard in Destrehan, and several homes in Luling took on ab...
Flash Flood — Jun 14, 2025
A typical active summertime regime was in place with widespread thunderstorm development. As some of these storms reached the city of New Orleans, they encountered a sea breeze boundary. This boundary both enhanced storm intensity and caused back building of storms. The result was heavy rain and flash flooding.
Flash Flood — Jul 17, 2024
A cluster of thunderstorms formed during the afternoon across southeast Louisiana in response to high moisture and instability. This cluster of storms were able to take advantage of mid-level dry air to produce severe winds across the Florida parishes and marine areas before pushing into the southshore and producing flash flooding.
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. Charles 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. Charles 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.