Enter any address in Aransas County, Texas to see its FEMA flood zone
Flash flooding from heavy rainfall is the most frequent flood hazard in Aransas County, with 51 such events recorded in the last 30 years. Other flood types, including storm surge, coastal flooding, and tropical storms, have also occurred. For example, heavy rain caused flooding in May 2025, and isolated flash flooding was reported in November 2025.
National Flood Insurance Program (NFIP) data shows a significant number of claims in Zone A, with an average payout of $12,172 and water depths of 1.7 feet. Claims in Zone X, which includes both shaded and unshaded areas, are also common, with average payouts ranging from $11,072 to $20,311. Properties in Zone V have experienced the deepest water, averaging 10.4 feet, and have the highest average claim payouts at $28,564.
Residents in coastal areas, as well as those in Zone A and Zone V, should pay particular attention to flood risk. Homeowners without a Base Flood Elevation (BFE) may also face higher risks.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
44 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Aransas County, Texas has recorded 87 flood-related events since 1996 according to NOAA's Storm Events Database, including 51 flash floods and 10 river or area floods. The county has received 31 federal disaster declarations, 4 of which involved flooding or coastal storms. Enter any address above to check its FEMA flood zone designation.
FEMA Disaster Declarations (1967–2024)
Source: OpenFEMA Disaster Declarations Summaries.
| Declaration | Type | Date |
|---|---|---|
| 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 |
| Holiday Beach Fire | Fire | Apr 5, 2009 |
NOAA Storm Events Database (1996–2025)
Source: NOAA National Weather Service Storm Events Database.
| Type | Date | Damage |
|---|---|---|
| Flood | May 28, 2025 | 0.00K |
| Flood | Nov 23, 2025 | 0.00K |
| Flash Flood | Jun 19, 2024 | 0.00K |
| Tropical Storm | Aug 22, 2023 | 25.00K |
| Flash Flood | May 10, 2023 | 0.00K |
| Flash Flood | Aug 29, 2022 | 0.00K |
| Flood | Sep 4, 2022 | 0.00K |
| Flash Flood | May 19, 2021 | 0.00K |
| Flood | May 16, 2021 | 0.00K |
| Storm Surge/Tide | Sep 13, 2021 | 0.00K |
Flood — May 28, 2025
Heavy rain and isolated flooding developed across central and south Texas during the early morning hours as deep convection expanded across the region. A very moist and unstable atmosphere with PWATs near 1.75 and MLCAPE around 2000 J/kg fueled thunderstorms capable of producing intense rainfall rates of 1-2/hour. These storms were largely driven by outflows, with limited low-level shear. As th...
Flood — Nov 23, 2025
A lingering weak frontal boundary continued to promote isolated to scattered showers and thunderstorms throughout the area. Limited instability and only moderate moisture kept area rainfall amounts generally below 0.50 inch. However, heavier downpours resulted in an isolated case of flash flooding in Aransas County.
Flash Flood — Jun 19, 2024
Tropical Storm Alberto was a very broad and unorganized storm that developed across the Southwestern Gulf of Mexico. Alberto eventually made landfall between the hours of 4-7 AM on June 20, 2024 near Tampico, Mexico. The system brought a variety of hazards to the region, including storm surge, heavy rains, strong winds, and a couple isolated tornadoes. Significant coastal flooding, around 3 to ...
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 10, 2023
Thunderstorms trained over the eastern parts of San Patricio County during the afternoon on the 9th and over Aransas and eastern Calhoun Counties on the morning of the 10th. The storms produced very heavy rainfall with amounts between 3 to 5 inches. The heavy rainfall caused flooding in Aransas Pass, Rockport, and Port Lavaca.
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 Aransas 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 Aransas 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.