Forest resources of the United States: 2022 appendix data tables

The Nationwide Forest Inventory (NFI) is a national network of permanent plots that are remeasured every 5-10 years depending on location. Land use information is collected on all plots, with additional site and tree (live and standing dead) data collected on plot areas having forest land use present. The Forest Resources Report summarizes data for the conterminous United States, Alaska, and Hawaii for reporting periods ranging from 1953 to 2022. There is a particular focus on each State's most recent evaluation period between 2019 and 2022. Data are then summarized by the international United Nations definition of forest area. This data publication includes the 47 data tables found in the appendix of the 2022 Forest Resources Report and includes information such as: land area, forest and woodland area, timberland area, timber volumes, biomass, and annual growth, removals, and mortality for different evaluation groups and attributes such as region, subregion, state, species, diameter groups, etc. Data include summarized Natural Resources Monitoring Use data for the continental United States for the dates referenced, as well.These data were developed to update the assessment of the condition and trends on U.S. forests following the 2020 Resources Planning Act (RPA) Assessment (https://research.fs.usda.gov/inventory/rpaa) chapter on Forest Resources.For more information about these data, see the Forest Resources Report (Oswalt et al. 2026). The full raw data (queryable) are available at https://research.fs.usda.gov/programs/nfi#data-and-tools. This data package was published on 09/24/2025. Minor metadata updates on 02/12/2026 include citation corrections for the associated publication (Oswalt et al. 2026) that was recently published.