Enter any address in San Patricio County, Texas to see its FEMA flood zone
Flash flooding from heavy rainfall events is the most frequent type of flooding in San Patricio County, TX. Over the past 30 years, NOAA Storm Events data shows 102 flash flood events. For example, in September 2024, heavy rainfall led to flooded roads in the Aransas Pass area. Coastal flooding also occurs, as seen in November 2024 when tidal levels and increasing winds resulted in minor coastal flooding.
National Flood Insurance Program (NFIP) data indicates that properties in Zone A have experienced the highest number of claims, with an average payout of $8,717 and an average water depth of 1.6 feet. Properties in Zone V have seen the highest average payouts at $17,228, with an average water depth of 6.4 feet, indicating a higher risk of significant flood damage. Homeowners in coastal areas, as well as those in Zone A and Zone V, should pay particular attention to flood risk.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
51 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
San Patricio County, Texas has recorded 136 flood-related events since 1996 according to NOAA's Storm Events Database, including 102 flash floods and 15 river or area floods. The county has received 34 federal disaster declarations, 6 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1967–2025)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| Welder Fire | Fire | Mar 4, 2025 |
| Hurricane Beryl | Hurricane | Jul 5, 2024 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Tropical Storms Marco And Laura | Hurricane | Aug 23, 2020 |
| Hurricane Hanna | Hurricane | Jul 25, 2020 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Harvey | Hurricane | Aug 23, 2017 |
| Tropical Storm Alex | Hurricane | Jun 27, 2010 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flash Flood | Sep 4, 2024 | 0.00K |
| Coastal Flood | Nov 3, 2024 | 0.00K |
| Tropical Storm | Aug 22, 2023 | 25.00K |
| Flash Flood | May 16, 2023 | 0.00K |
| Flash Flood | May 13, 2023 | 0.00K |
| Flash Flood | May 9, 2023 | 10.00K |
| Flash Flood | May 19, 2021 | 0.00K |
| Flood | May 16, 2021 | 0.00K |
| Flash Flood | Oct 14, 2021 | 0.00K |
| Tropical Storm | Sep 13, 2021 | 0.00K |
Flash Flood — Sep 4, 2024
A broad area of low pressure collocated with a stalled surface boundary along the coast provided multiple rounds of showers and thunderstorms over South Texas, with greatest rainfall and flooding reports over the Coastal Bend. Rainfall amounts were observed over 8 for the event with multiple roads flooded in the Aransas Pass area.
Coastal Flood — Nov 3, 2024
While tidal levels were predicted to barely touch 1.8-2.0 ft MSL, increasing winds helped increase wave heights. At the same time, we saw that 8 second periods were likely to reach the coastline. This resulted in greater chances for minor coastal flooding, leading us to keep a Coastal Flood Advisory in place through the next couple weeks following the 11/3/2024 event.
Tropical Storm — Aug 22, 2023
Tropical Storm Harold moved west across south Texas on the 22nd. An area of low pressure developed over the central Gulf of Mexico on the 21st. A large area of high pressure over the central United States into the northern Gulf Coast steered the system quickly westward toward the Middle Texas coast. The low strengthened into Tropical Storm Harold by the early morning hours of the 22nd. Harold i...
Flash Flood — May 16, 2023
Slow moving thunderstorms produced locally heavy rainfall across the Coastal Bend during the late morning hours. Street flooding occurred in Corpus Christi and Portland.
Flash Flood — May 13, 2023
Line of thunderstorms moved across the Coastal Bend during the early morning producing locally heavy rainfall. Rainfall amounts between 3 to 4 inches over San Patricio County produced flooding of roads near Odem, Sinton, and Taft.
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 San Patricio County, Texas:
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 San Patricio County, Texas 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.