The North Carolina Flood Mapping Program (NCFMP), in concert with the Federal Emergency Management Agency's (FEMA) National Flood Insurance Program (NFIP), is in the process of updating the Flood Insurance Rate Maps (FIRMs) in Wake County. You may be more familiar with hearing these maps being referred to as flood maps, flood inundation maps or floodplain maps. These FIRMs show studied areas that are at risk of flooding during large rainfall events (1% and 0.2% Annual Chance Floods). The last time the maps were updated for this area was in 2006. The National Flood Insurance Reform Act of 1994 requires FEMA to assess the need to revise and update all floodplain areas and flood hazard zones at least once every five years. The first step in updating the FIRMs is to publish the revised FIRMs as preliminary. The preliminary FIRMs were most recently published by the NCFMP in April 2015.

A Letter of Final Determination was issued June 6, 2019 for 6 panels only. The effective date for these panels is December 6, 2019. Revised panels are 3720180400K, 3720182200K, 3720182300K, 3720087400L, 3720088400L, and 3720089400L. These panels are located on the Granville County line north of Falls Lake.
granville panels.JPG

How does this affect me?

If your lot is currently in or near a FEMA floodplain, you can access the preliminary maps or call your local government floodplain manager for technical assistance. Look for a press release in late summer announcing Public Meetings. County staff are reviewing the maps in the unincorporated area of Wake County to identify parcels impacted by map changes. Data from the State indicate that there is a cumulative decrease of properties in the floodplain. Some properties are no longer in the floodplain, but some properties have been added. Cumulatively there are about 60 fewer structures located in the floodplain based on the preliminary mapping. Please contact the County Floodplain Administrator with questions or comments about the process.

View Preliminary Maps

You can view/download both the effective (current) and preliminary maps by going to NC FRIS.

Click on the Flood Risk Information System map image, select Wake County and zoom into your property. This will show the effective map. To view the preliminary map click in the top right corner on the button that says Effective, and select Preliminary.
Using the search tool, enter your address. Note: This may only get you close to your property.
Wake County's iMAPS shows only the effective maps.
Wake County maintains a repository of paper maps from 1978, 1986 and 1992.


Anticipated Map Update Schedule*

* The schedule and information on this page is based on best available information at the time it is updated and is subject to change. Please check back often for changes/updates. 




March 2015​ ​Preliminary maps released to local governments
May 2015

​Local Governments met with State to discuss map change process

October 2015
 Public Open Houses
 Holly Springs (Oct 5), Raleigh (Oct 7), Wake Forest (Oct 8), Cary (Oct 15)
October 2016​

Start Federal Register process


​Start 90-day appeal period

complete ​End 90-day appeal period

​FEMA issues Letter of Final Determination after reviewing appeals; begins 6-month compliance period for local governments to adopt new maps*.


Local governments amend local floodplain ordinances; new maps become effective upon adoption of ordinance.

 * schedules subject to FEMA approval

Flood Insurance

Changes to the flood maps may impact your need to obtain flood insurance or effect a rate change. Feel free to discuss flood insurance decisions with your local floodplain official in addition to your insurance agent.