USDA Forest Service

Forest Inventory and Analysis National Program


Forest Inventory & Analysis
National Office
U.S. Forest Service
1601 North Kent Street,
Suite 400
Arlington, VA 22209

(703) 605-4177

United States Department of Agriculture Forest Service.

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National Woodland Owner Survey

Click here for the latest user alerts.
July 22, 2014

The ratio estimate option (i.e. the option to choose a denominator) is returning incorrect estimates for any ratio involving net growth, mortality, or removals on timberland. Ratio estimates involving net growth, mortality, or removals on forest land are working correctly. Ratio estimates are intended to be restricted to timberland-to-timberland or forest land-to-forest land observations but the restriction is currently malfunctioning for timberland-to- timberland observations.

We are working to correct the problem and will update the alert when it has been corrected.

We are sorry for the inconvenience.

Previously reported issues with removals and mortality in EVALIDator have been corrected.

FIDO is working properly.

June 17, 2014

FIADB has been updated to include the new updated interpretation of the definition of reserved status. All annual data has been reanalyzed in accordance with this interpretation and some previously published values have changed as a result. Change estimates have been recomputed to account for any modifications. For more details please consult the FIADB User Guide (

For more information contact any of the following:

Jim Menlove RMRS ( 801-625-5426

Karen Waddell PNW ( 503-808-2046

Rich McCullough NRS ( 610-557-4081

Carol Perry SRS ( 865-862-2087

The National Woodland Owner Survey (NWOS) is the official census of forest owners in the United States. It is aimed at increasing our understanding of woodland owners who are the critical link between forests and society.

Picture of National Woodland Owner Survey booklet.

Summary information from the NWOS is used by people who provide, design, and implement services and policies that affect forest owners including government agencies, non-governmental organizations, including landowner organizations, private service providers, forest industry companies, and academic researchers.

On an annual basis, the NWOS contacts forest-land owners from across the county to ask them questions about:

  • The forest land they own
  • Their reasons for owning it
  • How they use it
  • If and how they manage it
  • Sources of information about their forests
  • Their concerns and issues related to their forests
  • Their intentions for the future of their forests
  • Their demographics

The main features of the National Woodland Owner Survey website are:

  • Survey results and publications
  • Frequently asked questions (FAQ)
  • Contact information
  • Copies of the questionnaires used
  • Link to NWOS Survey Tool for online survey entry
  • Links to state forestry and other agencies

National Woodland Owner Survey Table Maker an on-line tool for generating custom tables.

USDA Forest Service
Last Modified: March 17, 2014

USDA logo which links to the department's national site. Forest Service logo which links to the agency's national site.