Is My House in a Flood Zone? FEMA Flood Zone Map Info, and More Margaret Heidenry, provided by FacebookTwitterEmail "Is my property in a flood zone?" That's a question that concerns both homeowners and home shoppers—and not just those near large bodies of water. In fact, there are a little over a dozen flood zone classifications. Those rankings, determined by the Federal Emergency Management Agency and represented on special maps, are based on the estimated frequency of storms that will cause flooding in an area. So while you may not live in the Gulf Coast (one of the U.S. regions most vulnerable to hurricanes), your property may still be part of an area that's been deemed at high risk of flooding.