Flood Zone "X" in Florida, has always been regarded as a good indicator of safety from flooding. It is respected by Lenders, Realtors, Home Insurers, etc.as a good thing for the property of interest.
However, as of Oct. 1, 2013, all of Florida is considered a "Flood Zone" unless proved otherwise. To accomplish this homeowners, buyers, investors, etc. should order a "Certificate of Elevation" from the person that doing the Survey for the property. It is a nominal fee of about $75, worth every penny, and transferable to the next Home owner of record. I imagine our new forms will have a box to check that this process has been done, and the certificate signifies that it does.
It has been my experience that home owners "in the know" have already done this. I bought a property in 2004, and previous homeowner had already done this task. Always contact a knowledgeable Realtor, Surveyor, or FEMA Site and Maps to learn more. You can go online to 'My Florida' website and research the information noted above.
I have been a licensed Broker Associate in Florida for 15 years, and learned that it is necessary to look into these issues for my clients, my own knowledge Bank, and when interacting with others. in the 'Social Realm' this point of interest invariably comes up. It did recently on "Thanksgiving Day" while dining with many folks from Central Florida. this very question came up, over Dinner. I was so glad I knew about this new development, and could share my recent knowledge to all concerned.