Is My House in a Flood Zone? FreeFlood.com answers this simple question, and a lot more! With a database covering over 100 million US residential addresses, FreeFlood.com is a great source of valuable information: Search for your address to instantly see your home's current flood risk level. [View Sample] Use FreeFlood.com if you are looking to move into a new area, renting, selling or buying a residential property, or to find out if your home's flood status has changed since purchasing. To begin, simply type your address, city, state and (optionally) the zip code below. When complete, press the Search button to view your flood risk status.