Official FEMA map assistance
For a map panel, flood-zone question or map-change application, contact FEMA’s Flood Map Information eXchange at 877-336-2627. This independent website cannot issue or amend a flood determination.
Local property questions
Your city or county floodplain administrator can explain current effective maps, construction rules, local studies and existing elevation certificates. Your lender or insurer can explain the determination and policy requirements for your property.
Data provenance
Every data page links to the publishing source and methodology. For a discrepancy, compare the source date, county geography and definitions before interpreting a difference. Source corrections should go to the publishing agency through its official contact channel.