National Wetlands Inventory

Fisheries and Habitat Conservation

National Wetlands Inventory Data:

Visit the Wetlands Data index page for more information.

National Spatial Data Infrastructure (NSDI) Wetlands Layer:

Visit the Wetlands Layer index page for more information.

Wetlands Status and Trends:

Use the Document Search Engine to view and/or download other Status and Trends Reports.

Other Wetland Topics:

Visit the Other Current Wetland Topics 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).

Federal Data Standards For Wetlands

The U.S. Fish and Wildlife Service (USFWS) uses data standards to increase the quality and compatibility of its data. This approach increases the opportunity to share data and reduce occurance of redundant data development.

Classification System Standard: Classification of Wetlands and Deepwater Habitats of the United States
Data Layer Standard: Wetlands
FGDC Wetland Mapping Standard (PDF)
All USFWS Data Standards
- Definitions of Terms and Phrases
Wetlands Layer - National Spatial Data Infrastructure: A Phased Approach to Completion and Modernization (PDF)
National Standards and Quality Components for Wetlands, Deepwater and Related Habitat Mapping (PDF)

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