Wetlands Mapper

The Wetlands mapper is designed to deliver easy-to-use, map like views of America’s Wetland resources. It integrates digital map data along with other resource information to produce current information on the status, extent, characteristics and functions of wetlands, riparian riparian
Definition of riparian habitat or riparian areas.

Learn more about riparian
, and deepwater habitats. The Wetland Mapper fulfills the U.S. Fish and Wildlife Service’s strategic plan for the development, revision and dissemination of wetlands data and information to resource managers and the public. This information is intended  to promote the understanding and conservation of wetland resources through discovery and education as well as to aid in resource management, research and decision making.

The wetlands displayed on the Wetlands Mapper show wetland type and extent using a biological definition of wetlands. There is no attempt to define the limits of proprietary jurisdiction of any federal, state, or local government, or to establish the geographical scope of the regulatory programs of government agencies.

Getting Started

Please read the DisclaimerData Limitations, Exclusions and Precautions, and the Wetlands Geodatabase User Caution

Documentation and Instructions

Data and Mapper FAQs

Get answers to Frequently Asked Questions

Mapper Outage Notice: 

The NWI Mapper and data services are currently down. We are working to address the issue and do not have an estimated time of restoration. We apologize for the inconvenience. 

Until Services are restored, we recommend utilizing these NWI data source alternatives: