Fema Flood Data Download

The National Flood Hazard Layer (NFHL) is a geospatial database that contains current effective flood hazard data. FEMA provides the flood hazard data to support the National Flood Insurance Program. You can use the information to better understand your level of flood risk and type of flooding.

The NFHL is made from effective flood maps and Letters of Map Change (LOMC) delivered to communities. NFHL digital data covers over 90 percent of the U.S. population. New and revised data is being added continuously. If you need information for areas not covered by the NFHL data, there may be other FEMA products which provide coverage for those areas.

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In the NFHL Viewer, you can use the address search or map navigation to locate an area of interest and the NFHL Print Tool to download and print a full Flood Insurance Rate Map (FIRM) or FIRMette (a smaller, printable version of a FIRM) where modernized data exists. Technical GIS users can also utilize a series of dedicated GIS web services that allow the NFHL database to be incorporated into websites and GIS applications. For more information on available services, go to the NFHL GIS Services User Guide.

The Draft National Flood Hazard Layer is for early awareness of possible changes to regulatory flood map information. Until the data becomes effective and it appears in the National Flood Hazard Layer, the data cannot be used to rate flood insurance policies or enforce the federal mandatory purchase requirement.

Because your flood risk changes over time, the National Flood Insurance Program (NFIP) and the Federal Emergency Management Agency (FEMA) work with communities across the country to identify and map flood risk on an ongoing basis.

Additionally, Flood Insurance Rate Maps (FIRMs) will continue to be used for mandatory purchase requirements, building code requirements, and floodplain management requirements, as they have always been the backbone of those programs, but will no longer be the most significant factor.

MIP is now part of RAP The Mapping Information Platform (MIP) has a new secure single sign-on via the RAM Access Portal (RAP). Your MIP account email and username have automatically been linked to your new RAP account. If you use a PIV card to login to MIP, your PIV ID has been linked to your new RAP account. Once redirected to RAP, please follow the prompts to complete your profile. If you have any issues, please send a request to FEMA-RiskMAP-ITHelp@fema.dhs.gov.

Due to recent changes, hazards.fema.gov only supports TLS 1.2 with Cipher Suites. This change impacts Windows 2012 R2 and prior versions, as well any applications that do not support TLS 1.2 with Cipher Suites. For more information, contact Risk MAP IT Help.

FEMA provides access to the National Flood Hazard Layer (NFHL) through web mapping services. The NFHL is a computer database that contains FEMAs flood hazard map data. The simplest way for you to access the flood hazard data, including the NFHL, is through FEMAs Map Service Center (MSC). If you want to explore the current digital effective flood hazard data in a map, the best tool to use is the NFHL Viewer. From the NFHL Viewer, you may view, download, and print flood maps for your location

Not all effective Flood Insurance Rate Maps (FIRM) have geographic information system (GIS) data available. To view a list of available county and single-jurisdiction flood study data in GIS format and check the status of the NFHL GIS services please visit the NFHL Status Page. Preliminary & Pending National Flood Hazard LayersThe Preliminary and Pending NFHL dataset represents the current pre-effective flood data for the country. These layers are updated as new preliminary and pending data becomes available, and data is removed from these layers as it becomes effective.

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 are not final and are presented in this national layer 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 pending data are available. The preliminary flood hazard data is available through the preliminary FEMA Map Products page. If the preliminary flood hazard data search tool is unavailable, please use the alternate site. To explore the current digital preliminary flood hazard data in a map, the best tool to use is the Flood Map Changes Viewer (FMCV). From the Flood Map Changes Viewer, you may view, download, and print flood maps for your location.

Pending data are for early awareness of upcoming changes to regulatory flood map information. Until the data becomes effective, when it will appear in FEMA's National Flood Hazard Layer (NFHL), the data should not be used to rate flood insurance policies or enforce the Federal mandatory purchase requirement. FEMA will remove pending data once effective data are available.

FEMA's GIS flood map services are available through FEMAs GeoPlatform, an ArcGIS Online portal containing a variety of FEMA-related data. To view the NFHL on the FEMA GeoPlatform go to NFHL on FEMA GeoPlatform.

The NFHL is organized into many data layers. The layers display information at map scales appropriate for the data. A layer indicating the availability of NFHL data is displayed at map scales smaller than 1:250,000, regional overviews at map scales between 1:250,000 and 1:50,000, and detailed flood hazard maps at map scales of 1:50,000 and larger. The "Scalehint" item in the Capabilities file for the Web Map Service encodes the scale range for a layer.

In addition, there are non-NFHL datasets provided in the GIS web services, such as information about the availability of flood data and maps, the national map panel scheme, and point locations for LOMA and LOMR-Fs. The LOMA are positioned less accurately than are the NFHL data.

For users experienced with GIS, a variety of services are offered for the public to access NFHL data. The services contain predefined symbology similar to the printed FIRM panels onto which the data is mapped. Though the services contain all NFHL spatial layers, some are only available in certain scale ranges; for instance, detailed flood maps are only available when zoomed past 1:50,000 scale.

The ArcGIS REST service provides direct access to NFHL spatial information through Environmental Systems Research Institute (ESRI) applications such as ArcGIS Desktop or ArcGIS Online. This service supports mapping, data, and query requests.

The NFHL Web Feature Service provides an OGC-compliant protocol for direct download of GIS data from the NFHL. This service can be consumed by a number of free and commercial GIS clients. Requests are currently limits to 1000 features, so it is recommended that users focus on a very limited area of interest when requesting data through WFS. If a larger amount of data is needed,it is recommended that users download the NFHL data by state or county from the MSC.

Preferred Risk Policy Disclaimer: Following the implementation of NFIP's pricing approach, Risk Rating 2.0, in April 2023, FEMA is able to differentiate flood risk in areas outside high-risk flood zones and no longer offers the Preferred Risk Policy (PRP). PRPs are not available for new policies or exsisting policyholders renewing after October 2021.

The Delaware Department of Natural Resources and Environmental Control (DNREC) Flood Tool is an interactive web map application. This tool is designed to aid you in researching your flood risk in the state of Delaware.

Click the menu icon on the top left corner for more options

The Delaware Department of Natural Resources and Environmental Control (DNREC) Flood Planning Tool is an interactive web map application designed to aid you in researching your flood risk in the State of Delaware.

Disclaimer: The Flood Planning Tool provided herein is for reference only within the State of Delaware boundaries. The user of this information understands and acknowledges that the data may be inaccurate or contain errors or omissions and the user assumes full responsibility for any risks or damages resulting from any use or reliance upon this data. Delaware DNREC does not guarantee the accuracy or reliability of the data generated from this service.

Housed within FEMA's Mapping Information Platform (MIP), the eLOMA tool is designed specifically for LPs and CPs to generate a quick determination from FEMA within minutes of submitting required information and data for the subject of the eLOMA request. The eLOMA tool is designed to replace the traditional standard LOMA process by allowing users to expedite LOMA requests that meet eLOMA Criteria.

A LOMA determination via Online LOMC or the paper forms may take up to 60 days to process, compared to a potentially instant eLOMA determination. The eLOMA tool allows for less mailing and printing of supporting data forms and expedites the electronic transfer and tracking of data.

Users have the option to create a new application or resume a saved application. After submitting all required data and documentation, including appropriate certified elevation information, eLOMA will determine if the submitted Lowest Adjacent Grade (LAG) or Low Lot Elevation (LLE) of the structure or property is found to be above the 1-percent-annual chance Base Flood Elevation (BFE), thus waiving the federal insurance requirement. 006ab0faaa