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Know Your Flood Risk

Are you in the floodplain?

Search your address to find out if you are in the Floodplain.

If your property is located within the flood insurance risk zones (Special Flood Hazard Areas or SFHAs), and is mortgaged through a federally regulated or insured lender, you may be required to have flood insurance by law. Search your address in the San Antonio River Authority’s Floodplain Viewer to find out if your property is located within an SFHA.

The Floodplain Viewer engages users in an interactive map, displaying the Federal Emergency Management Agency’s (FEMA) National Flood Hazard Layer (NFHL) data. Together with its many Bexar Regional Watershed Management (BRWM) partners, the San Antonio River Authority collected the data used in the digital maps, providing basic information about the floodplains in Bexar County (also includes data for Wilson, Karnes, and Goliad Counties).

Click image to search your address in the Floodplain Viewer

What is your food risk?

Search your address to find out more about your flood risk.

Even if your property is not in the floodplain, you could be at high risk of flooding. The San Antonio River Authority’s Flood Risk Viewer compiles layers of data acquired through FEMA’s Risk MAP program. Search your address for a more complete analysis of your flood risk. The Flood Risk Viewer provides flood depth data for the 1 percent annual chance flood and data on the risk of flooding over the life of a 30 year mortgage. Discover your risk below.

Click image to search your address in the Flood Risk Viewer


Know Your Risk
Risk MAP Project Areas
Risk MAP Data Products
Flood Risk Datasets
Cooperating Technical Partners (CTP)