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Preliminary Flood Hazard Data

The best way to access your community's data is to visit the Preliminary Flood Hazard Data search tool. Please use this webpage to find your data if the search tool is unavailable.

The Federal Emergency Management Agency's (FEMA) preliminary flood hazard data (preliminary data) provide the public an early look at their home or community's projected risk to flood hazards. Preliminary data may include: new or revised Flood Insurance Rate Maps (FIRM), Flood Insurance Study (FIS) reports, and FIRM Databases.

To view your community's preliminary data, click here.

For more information about preliminary data, go to FEMA's Preliminary Flood Hazard Data webpage.

Viewing Preliminary Flood Hazard Data

Preliminary data issued in April 2013 and later are available through this site. To view preliminary data issued before April or if you have questions about where to find your community's preliminary data, contact the FEMA Map Information eXchange (FMIX) at 1-877-336-2627 or e-mail FEMAMapSpecialist@riskmapcds.com.

Your community's preliminary FIRM and FIS Report will be displayed in a PDF file. You have the option to view and save these PDF files. To begin, start with the Flood Insurance Rate Map Index file to find your location and which map number to view. For more information explaining how to read a FIRM, view this tutorial.

Your community's FIRM Database will be displayed in a zip file. To open and view your community's FIRM Database after download and extraction, you will need a GIS software application. If you do not have your own GIS software, you can view the data in free GIS viewing programs, which can be found online.


Preliminary data are for review and guidance purposes only. By viewing preliminary data and maps, the user acknowledges that the information provided is preliminary and subject to change. Preliminary data, including new or revised FIRMs, FIS reports, and FIRM Databases, are not final and are presented as the best information available at this time. Additionally, preliminary data cannot be used to rate flood insurance policies or enforce the Federal mandatory purchase requirement. FEMA will remove preliminary data once effective data are available.