Library

Browse our library for more information on the National Wetlands Inventory and the work we do. If you need help accessing a document, please email us at: wetlands_team@fws.gov.

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2019 National Wetlands Status and Trends Report Fact Sheet

The National Wetlands Status and Trends reports, issued every ten years, provide robust scientific estimates of the extent of seventeen wetland and deepwater habitats, as well as change in their area over time. This fact sheet provides a summary and introduction to the 2009-2019 report.

Status and Trends of Wetlands in the Conterminous United States 2009 to 2019

Under the Emergency Wetlands Resources Act of 1986, we are required to submit decadal reports to Congress on wetland status and trends (area and change). These National Wetlands Inventory (NWI) Program reports provide the data necessary to effectively manage wetlands and determine if the goal of...

National Wetlands Inventory Program Fact Sheet

The National Wetlands Inventory (NWI) provides users with scientifically-based information on wetlands and deepwater habitats to promote the understanding and conservation of the Nation’s wetland resources through research, education, resource management and policy development.

Wetlands Data Layer Fact Sheet

The NWI Wetlands Data Layer provides users with scientifically-based information on wetlands and deepwater habitats to promote the understanding and conservation of the Nation’s wetland resources.

Wetlands Status and Trends Reports Fact Sheet

Recognizing the importance of America’s wetlands, Congress enacted the Emergency Wetlands Resources Act (Public Law 99-645) of 1986. It requires the U.S. Fish and Wildlife Service (Service) to map wetlands in the United States, as well as conduct national status and trends studies and report to...

Waterfowl flies over wetland with tree line in the background.
This collection includes all available National Status and Trends Reports, State and Regional Status and Trends Reports, Status and Trends Technical Information, and Status and Trends Related Reports.
Close-up of a red dragonfly hovering over a branch.
This collection includes all National Wetlands Inventory (NWI) documentation pertaining to mapping wetlands to the federal standard, mapping riparian and NWI line data, as well as documentation of the process for submitting data to NWI.
A long-bodied insect with four gossamer wings and a brown-and-white striped tubular body perches on a stalk.
Browse our full collection of stories highlighting the importance of wetlands and the role the U.S. Fish and Wildlife Service plays in conserving them.