FEMA’s online Flood Map Service Center is a great tool to find out what flood zone you are in or a home you may be purchasing.
Link:
https://msc.fema.gov/portal/search
Type your address in the search bar and hit enter. When the map appears click “streets” in the right corner. The flood zone should appear. If you do not find the information you need you can always check with your local municipality or surveyor.