Flood Zones
Check FEMA Flood Maps Before You Buy or Build
Parts of San Patricio County lie in FEMA flood hazard zones, which can affect your insurance costs and what you are allowed to build.
San Patricio County sits near the Gulf Coast and is drained by the Nueces and Aransas rivers. Some areas — especially near the rivers, bays, and low-lying coastal land — fall in Special Flood Hazard Areas (SFHAs) on FEMA maps. If your property is in an SFHA and you have a federally backed mortgage, your lender will require flood insurance.
You can look up any address at the FEMA Flood Map Service Center online. The map will show the flood zone designation for that parcel. Flood zone designations also affect what types of structures are permitted and how they must be elevated. This matters if you are building new or adding on. FEMA flood maps are updated periodically, so check the current official map rather than relying on what a previous owner told you.
Source to confirm: FEMA Flood Map Service Center