Enter any address in Gonzales County, Texas to see its FEMA flood zone
Flash flooding events are the most frequent type of flooding recorded in Gonzales County over the last 30 years, with 90 occurrences noted in the NOAA Storm Events Database. This type of flooding was observed in January 2024, when a stationary boundary and moist air contributed to heavy rainfall over several days.
National Flood Insurance Program (NFIP) claims data indicates that properties in Zone A have experienced the highest number of claims, with 135 claims filed on average. However, properties in Zone X_UNSHADED have seen the highest average payouts at $50,576, with an average water depth of 9.4 feet. Properties in Zone X_SHADED have also seen significant payouts, averaging $38,775 with an average water depth of 48.0 feet.
Residents in areas designated as Zone A, as well as those in Zone X_SHADED and Zone X_UNSHADED, should pay particular attention to flood risk. Homeowners in these zones may face a higher likelihood of flood damage and associated costs.
Summary generated from NOAA storm narratives and NFIP claim data for this county. Not predictive.
32 NOAA storm reports from this county describe what happened, in the words of the meteorologists who were there.
Gonzales County, Texas has recorded 106 flood-related events since 1996 according to NOAA's Storm Events Database, including 90 flash floods and 15 river or area floods. The county has received 22 federal disaster declarations, 5 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 |
|---|---|---|
| Severe Storms, Straight-line Winds, Tornadoes, And Flooding | Flood | Apr 26, 2024 |
| Severe Winter Storm | Severe Ice Storm | Feb 11, 2021 |
| Severe Winter Storms | Severe Ice Storm | Feb 11, 2021 |
| Covid-19 | Biological | Jan 20, 2020 |
| Covid-19 Pandemic | Biological | Jan 20, 2020 |
| Hurricane Harvey | Hurricane | Aug 23, 2017 |
| Severe Storms, Tornadoes, Straight-line Winds And Flooding | Severe Storm | May 4, 2015 |
| Wildfires | Fire | Apr 6, 2011 |
| Wildfires | Fire | Mar 14, 2008 |
| Severe Storms, Tornadoes, And Flooding | Severe Storm | Jun 16, 2007 |
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 23, 2024 | 0.00K |
| Flash Flood | Jan 22, 2024 | 0.00K |
| Flash Flood | May 13, 2023 | 0.00K |
| Flash Flood | Oct 14, 2021 | 0.00K |
| Flash Flood | Aug 27, 2017 | 0.00K |
| Tropical Storm | Aug 26, 2017 | 100.00K |
| Flash Flood | Apr 18, 2016 | 0.00K |
| Flash Flood | Jun 2, 2016 | 0.00K |
| Flash Flood | May 25, 2015 | 0.00K |
Flash Flood — Jan 24, 2024
An upper-level trough remained nearly stationary over the western US resulting in southwesterly flow over Texas. A stationary boundary stretched across central Texas with anomalously moist air south of the boundary. A series of shortwave troughs moved through the upper pattern generating several rounds of locally heavy rain over three days. There was also some large hail.
Flash Flood — Jan 23, 2024
An upper-level trough remained nearly stationary over the western US resulting in southwesterly flow over Texas. A stationary boundary stretched across central Texas with anomalously moist air south of the boundary. A series of shortwave troughs moved through the upper pattern generating several rounds of locally heavy rain over three days. There was also some large hail.
Flash Flood — Jan 22, 2024
An upper-level trough remained nearly stationary over the western US resulting in southwesterly flow over Texas. A stationary boundary stretched across central Texas with anomalously moist air south of the boundary. A series of shortwave troughs moved through the upper pattern generating several rounds of locally heavy rain over three days. There was also some large hail.
Flash Flood — May 13, 2023
An upper level trough moved over a moist, unstable airmass and generated thunderstorms. Storms initially formed over the higher terrain in Mexico and moved across the Rio Grande into Texas. Some storms produced damaging wind gusts. Storms eventually congealed into a slow-moving line that produce locally heavy rain leading to flash flooding.
Flash Flood — Oct 14, 2021
A complicated weather pattern developed over South Central Texas when a dryline and cold front moved out of West Texas as an upper level low moved into the Central Plains. At the same time the remnants of Pacific Hurricane Pamela moved across northern Mexico. The airmass over the region was warm and moist with near record precipitable water values. This set up led to an excessive rain episode w...
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 Gonzales 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 Gonzales 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.