National Wetlands Inventory

National Spatial Data Infrastructure (NSDI) Wetlands Layer:

Visit the Wetlands Layer index page for more information.

Contact Information:

You can also email the FWS Customer Service Center, or call 1.800.344.WILD (1.800.344.9453).

Wetlands Data Contributors

Organizations or individuals have the opportunity to contribute wetlands data to the wetlands geospatial data layer maintained by the U.S. Fish and Wildlife Service. The wetlands data layer is the featured layer on the Wetlands Mapper, forms a catalog component to The National Map and is registered through the Geospatial One-Stop.  Below is a list of organizations and agencies that have contributed wetlands data to the national wetlands geospatial data layer 

Georgia Department of Natural Resources

South Carolina Department of Natural Resources

South Florida Water Management District

Southwest Florida Water Management District

St Johns River Water Management District

Wisconsin Department of Natural Resources

Ducks Unlimited - Great Lakes and Atlantic Regional Office

U.S. Army Corps of Engineers, Fort Worth, TX

Iowa Department of Natural Resources

British Petroleum, Inc

J.S. Jones and Associates, Inc

San Francisco Estuary Institute

California Natural Resources Agency

Bemidji State University, Minnesota

Navajo Nation

U.S. Environmental Protection Agency



University of Arizona, Tucson, AZ

University of Texas, Austin TX

AMEC Earth & Environmental

Texas Tech University

Tennessee Wildlife Resources Agency

Auburn University

Oregon Department of State Lands

Idaho Department of Fish and Game

Oklahoma Conservation Commission

Tennessee Valley Authority

Colorado Natural Heritage Program

USGS, National Wetlands Research Center

Bureau of Land Management, Idaho State Office

Michigan Department of Natural Resources

Montana Natural Heritage Program

Massachusetts Department of Environmental Protection

New York Adirondack Park Agency

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