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National Wetlands Inventory

Wetlands
Wetlands provide a multitude of ecological, economic and social benefits. They provide habitat for fish, wildlife and plants - many of which have a commercial or recreational value - recharge groundwater, reduce flooding, provide clean drinking water, offer food and fiber, and support cultural and recreational activities. Unfortunately, over half of America’s wetlands have been lost since 1780, and wetland losses continue today. This highlights the urgent need for geospatial information on wetland extent, type, and change.

The National Wetlands Inventory
The US Fish and Wildlife Service (FWS) is the principal US Federal agency tasked with providing information to the public on the status and trends of our Nation's wetlands. The US FWS National Wetlands Inventory (NWI) is a publicly available resource that provides detailed information on the abundance, characteristics, and distribution of US wetlands. NWI data are used by natural resource managers, within the US FWS and throughout the Nation, to promote the understanding, conservation and restoration of wetlands.

FieldValue
Modified
2019-08-05
Release Date
2018-03-05
Frequency
Semiannual
Identifier
af54b563-2d9e-4ee1-b330-a79a144ced41
Publisher
U.S. Fish & Wildlife Service
License
Data Dictionary
Contact Name
Wetlands Team
Contact Email
Public Access Level
Public