Skip to main content 

U.S. Fish & Wildlife Service

## Utility (Top) navigation

-  About Us   **Forward **Back-  About Us
-  Mission & Vision
-  Leadership
-  Our Organization
-  Our Facilities
-  Regions

-  Laws & Regulations   **Forward **Back-  Laws & Regulations
-  Laws, Agreements & Treaties
-  Hunting Regulations

-  Library   **Forward **Back-  Library
-  Categories
-  Collections

                          -   Home 
                          -   Services   **Forward **Back-   Services 
-   Duck Stamps   **Forward **Back-   Duck Stamps 
-   Buy a Duck Stamp or E-Stamp 
-   Buy a Junior Duck Stamp 

-   Fish Stocking 
-   Importing & Exporting 
-   Consultation & Technical Assistance   **Forward **Back-   Consultation & Technical Assistance 
-   ESA Section 7 Consultation 
-   Habitat Conservation Planning (HCPs) 
-   Candidate Conservation Agreements (CCA & CCAA) 
-   Safe Harbour Agreements (SHA) 
-   Conservation Banking 
-   Coastal Barrier Resources Act Project Consultation 
-   Coastal Barrier Resources System Property Documentation 

-   Financial Assistance 
-   Species Management 
-   Investigational New Animal Drugs (INADS) 
-   Permits 
-   Search All Services 
Duck StampsOne of the easiest ways that anyone can support bird habitat conservation is by buying duck stamps.
                          -   Species   **Forward **Back-   Species 
-   Explore Taxonomic Tree 
-   Find a Species 
Interest storyBats: “The Coolest Mammals on Earth”
                          -   Visit Us   **Forward **Back-   Visit Us 
-   Events 
-   Recreation Passes 
-   Outdoor Recreation 
-   Where to Hunt 
-   Where to Fish 
-   Our Locations 
Scenic DrivesTour routes of great scenic drives on National Wildlife Refuges.
                          -   Get Involved   **Forward **Back-   Get Involved 
-   Careers and Internships 
-   Volunteering 
-   Friends Partnerships 
-   Learning Opportunities 
-   Education Programs 
-   Events 
-   Partnerships   **Forward **Back-   Partnerships 
-   Partnership Categories 
-   Partner List 

VolunteerSearch for volunteer opportunities around the country
                          -   Newsroom   **Forward **Back-   Newsroom 
-   Press Releases 
-   Congressional Testimony 
-   Media Contacts 
Wild ThingsNews about wonderful wild things and places
                          -   Initiatives   **Forward **Back-   Initiatives 
-   Combating Wildlife Trafficking 
-   Director's Priorities 
-   Climate Change 
-   Hunting 
-   Fishing 
-   Invasive Species 
-   Pollinators 
-   Protecting Wildlife 
Climate ActionFWS is taking steps to mitigate climate impacts
                          -   I want to   **Forward **Back-  I Want To
-   Report Wildlife Crime 
-   Do Business with FWS 
-   Volunteer 
-   Find a Job or Internship 
-   Visit a Refuge 
-   Buy a Duck Stamp 
-   Apply for a Permit 
-   Find Funding 
-   Find Training 
Wild workSearch employment opportunities with USFWS

## Search

Search

# National Wetlands Inventory

Image Details

Image Details

Image Details

Image Details

                -  National Wetlands Inventory
                -  About Us
                -  What We Do
                -  Contact Us
                -  Get Involved
                -  Events
                -  Library
                -  News
                -  Wetlands Mapper
                -  Wetlands Data
                -  Wetlands Mapping
                -  Status and Trends

## What We Do

Image Details

#### Our Services

We produce and distribute maps and other geospatial data on American wetland and deepwater habitats, as well as monitor changes in these habitats through time. This information is available to the public through two primary datasets: the wetlands geospatial dataset and wetlands status and trends reports. These provide complementary information on wetland and deepwater habitat type, location, and trends to support research, land management planning and analyses, policy development, and modeling activities.

##### **Wetlands Mapper**

The Wetlands Mapper is the primary public interface to the wetlands geospatial dataset and it delivers easy-to-use, map-like views of the nation’s wetland and deepwater resources. It spatially integrates National Wetland Inventory data with additional natural resource information and political boundaries to produce a robust decision support tool.

##### **Status and Trends**

Our Status and Trends reports provide estimates of U.S. wetland extent, type, and change specific to different time periods, ranging from the 1700s to 2009. Produced on a decadal basis, these reports inform policy-makers and the public on the status of the nation's wetlands and potential causes of wetland change.

View the 2019 Wetlands Status and Trends report

Image Details

#### Our Laws and Regulations

Recognizing the importance of wetlands to the safety and well-being of all Americans, as well as the conservation of fish, wildlife, and plants, Congress enacted the Emergency Wetlands Resources Act of 1986 (Public Law 99-645). This legislation directs the U.S. Fish and Wildlife Service to map America’s wetlands, as well as conduct decadal national wetlands status and trends studies and report the findings to Congress. The Service created the National Wetlands Inventory (NWI) to carry out these responsibilities.

More About What We Do

## Latest Stories and Topics

Land ManagementContinued Decline of Wetlands Documented in New U.S. Fish and Wildlife Service Report A new report released by the U.S. Fish and Wildlife Service reveals wetlands – 95 percent of which are freshwater — covered less than 6 percent of the lower 48 states as of 2019 – which is half the area they covered since the 1780s. The report also identifies that loss rates have increased by 50...Mar 22, 2024

Science and TechnologyConserving at Flyway Scales Migratory birds face threats as wetlands vanish due to climate change and human actions. An innovative new tool represents a transformative leap in better understanding these crucial ecosystems and their avian inhabitants.Oct 12, 2023

Science and TechnologyHow Geotags Help Map, 'Ground-Truth,' and Empower Co-Stewardship“The value of the geotagged photo is truly in the eye of the beholder.”Sep 20, 2023

Wildlife ManagementInterior Department Announces More Than $50.6 Million for Wetland Conservation Projects and National Wildlife RefugesWASHINGTON – The Department of the Interior today announced that more than $50.6 million in funding has been approved by the Migratory Bird Conservation Commission, providing the U.S. Fish and Wildlife Service and its partners the ability to help conserve, restore or enhance more than 106,600 acres...Sep 13, 2023

Wildlife WondersFour Fish Who Want You To Wet Your PlantsWetlands are cool and so are the fish that need them.May 17, 2023

Wetlands of International Importance: Ramsar Sites in the United StatesThe Ramsar Convention encourages the designation of sites containing representative, rare or unique wetlands, or wetlands that are important for conserving biological diversity. Once designated, these sites are added to the Convention's List of Wetlands of International Importance and become known...May 8, 2023

View All News

## Our Library

Image Details

Whether you are looking for more information about the National Wetlands Inventory, wetland status and trend reports, or the classification of wetlands and deepwater habitats, you can find it in our library.

View Our Library

Working with others to conserve, protect and enhance fish, wildlife, plants and their habitats for the continuing benefit of the American people.

## Footer Menu - Employment

-  Careers & Internships
-  Contracting

## Footer Menu - Site Links

-  Leadership
-  Frequently Asked Questions
-  Contact FWS

## Footer Menu - Legal

-  Accessibility
-  Freedom of Information Act
-  Notices
-  Privacy Policy
-  Disclaimers
-  Information Quality
-  Vulnerability Disclosure Policy

## Footer Menu - External Links

-  DOI
-  USA.GOV

                    -  
                    -  
                    -  
                    -  
                    -  
                    -  

### You are exiting the U.S. Fish and Wildlife Service website

You are being directed to 

We do not guarantee that the websites we link to comply with Section 508 (Accessibility Requirements) of the Rehabilitation Act. Links also do not constitute endorsement, recommendation, or favoring by the U.S. Fish and Wildlife Service.
I Understand. Take me there.