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).

Download Seamless Wetlands Data by State

Before You Begin

  • Each State data download is available as either a compressed file Geodatabase or a Shapefile. Both files are compressed by using the .zip format.
     
  • Not all of Alaska has been digitally mapped by the U.S. Fish and Wildlife Service. Please refer to the Wetlands Mapper Wetlands Mapping Status layer to view where wetlands have been mapped in Alaska. The state downloads include a Wetlands Project Metadata layer that identifies where and when wetlands were mapped within the state.
     
  • NOTE: Due to the variation in use and analysis of this data by the end user, each of states wetlands data extends beyond the state boundary. Each state includes wetlands data that intersect the 1:24,000 quadrangles that contain part of that state (1:2,000,000 source data). This allows the user to clip the data to their specific analysis datasets. Beware that two adjacent states will contain some of the same data along their borders.

Downloading Tips

  • If an error occurs during your download, or if your downloaded file(s) is corrupted, we strongly recommend the use of a download manager. Please visit the Frequently Asked Questions page for more information on this topic. For security reasons, we are not allowed to served data via FTP.
     
  • Due to the amount of data being downloaded, the resulting time to download each file may take up to 60 minutes or more, and each file can range in sizes from 1MB to approximately 1GB.

 

State Downloads (file downloads last updated October 6, 2014)

State
Download Type
Alabama Geodatabase
Alaska Geodatabase Shapefile
Arizona Geodatabase
Arkansas Geodatabase
California
Colorado
Connecticut
Delaware
District of Columbia Geodatabase Shapefile
Florida
Georgia
Hawaii
Idaho
Illinois
Indiana
Iowa
Kansas
Kentucky Geodatabase Shapefile
Louisiana
Maine
Maryland
Massachusetts
Michigan
Minnesota
Mississippi
Missouri
Montana
 
State
Download Type
Nebraska
Nevada
New Hampshire
New Jersey
New Mexico
New York
North Carolina
North Dakota
Ohio
Oklahoma
Oregon
Pacific Trust Islands
Pennsylvania
Puerto Rico & Virgin Islands
Rhode Island
South Carolina
South Dakota
Tennessee
Texas
Utah
Vermont
Virginia
Washington
West Virginia
Wisconsin
Wyoming

Last updated: