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Floodplain Maps

The FEMA floodplain maps for New Hampshire communities can be viewed at the following locations.

FEMA Map Service Center

The FEMA Map Service Center (MSC) is the official online public source for flood hazard information produced in support of the NFIP. The MSC web site can be used to find current, historic, preliminary (draft), and pending (future) FEMA Flood Insurance Rate Maps (FIRM) as well as the current Flood Insurance Studies (FIS), which can be viewed, downloaded, or printed. Also available are the GIS data and web services, Letters of Map Change, and Non-Regulatory Flood Risk Products.

The NH Flood Hazards Viewer

Floodplain mapping for all NH communities except those in Belknap County* can also be viewed online using the NH Flood Hazards Viewer developed by OSI. The viewer allows a user to view and compare the latest effective and preliminary FEMA flood hazard information and overlay parcel boundaries for most areas of the state. Coastal flood risk projections developed as part of the 2019 NH Coastal Flood Risk Summary are also available in the viewer.

*To view Belknap County community floodplain maps, please go to the FEMA Map Service Center.

Current NH Floodplain Mapping Activities

The Current NH Floodplain Mapping Activities web page includes information about FEMA's current floodplain mapping activities in New Hampshire.

NH Office of Strategic Initiatives

OSI maintains a collection of all past and current NFIP maps and FISs for New Hampshire communities. We can usually provide copies of either the entire map or portions of the map at no charge. Please contact us for a map or study or to stop by to review the collection.

Portable Document Format Symbol Portable Document Format (.pdf). Visit for a list of free .pdf readers for a variety of operating systems.

NH Office of Strategic Initiatives