Title:

Annual state-level Forest Inventory and Analysis database (FIADB) standard estimate tables

Author(s):

USDA Forest Service

Publication Year:

2026

How to Cite:

These data were collected using funding from the U.S. Government and can be used without additional permissions or fees. If you use these data in a publication, presentation, or other research product please use the following citation:

USDA Forest Service. 2026. Annual state-level Forest Inventory and Analysis database (FIADB) standard estimate tables. Fort Collins, CO: Forest Service Research Data Archive. https://doi.org/10.2737/RDS-2026-0020

Abstract:

The nationwide forest inventory (NFI) of the USDA Forest Service Forest Inventory and Analysis program collects, analyzes, and reports information on the status, trends, and condition of America’s forests: how much forest exists, where it exists, who owns it, and how it is changing, as well as how the trees and other forest vegetation are growing and how much has died or has been removed in recent years. This data publication includes the annual (2006-2024) standard state-level FIADB data tables for the northern region of the United States, which includes 24 states. Data for each state and year fall into the following categories: 1) area of land by status, area of forest and timberland; 2) number of live and growing stock trees; 3) volume of sound total-stem bark and wood, merchantable bole wood, and sawlog wood; 4) net growth, mortality, and removals of sound total-stem bark and wood, and merchantable bole wood; 5) aboveground biomass (weight) of live trees; 6) county-level data; 7) state-level changes; and 8) sampling errors. Data will vary slightly across states and years, with later years including additional data tables. Data from 2006-2015 are provided as Portable Document Format (PDF) files, and data from 2016-2024 are provided as Microsoft Excel (XLSX) spreadsheet files. All data files are self-explanatory and include complete details on data table contents, units, etc. In addition to the annual state-level data files, this package also includes additional documents, inventory reports, state-level images, and other information that might be helpful to understand the data.

Keywords:

biota; environment; Inventory, Monitoring, & Analysis; Resource inventory; Ecology, Ecosystems, & Environment; Plant ecology; Forest Products; forest inventory; forest land trends; volume; sawtimber; growth; removals; mortality; northern United States; Connecticut; Delaware; Iowa; Illinois; Indiana; Kansas; Massachusetts; Maryland; Maine; Michigan; Minnesota; Missouri; North Dakota; Nebraska; New Hampshire; New Jersey; New York; Ohio; Pennsylvania; Rhode Island; South Dakota; Vermont; Wisconsin; West Virginia

Related publications:

• Gormanson, Dale D.; Pugh, Scott A.; Barnett, Charles J.; Morin, Randall S.; Sowers, Paul A.; Westfall, James A. 2023. Statistics and quality assurance for the Northern Research Station Forest Inventory and Analysis Program, version 3. General Technical Report. NRS-GTR-210. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station. 35 p. https://doi.org/10.2737/NRS-GTR-210
• Westfall, James A. (comp.); Coulston, John W. (comp.); Moisen, Gretchen G. (comp.); Andersen, Hans-Erik (comp.). 2022. Sampling and estimation documentation for the Enhanced Forest Inventory and Analysis Program: 2022. General Technical Report. NRS-GTR-207. Madison, WI: U.S. Department of Agriculture, Forest Service, Northern Research Station. 129 p. https://doi.org/10.2737/NRS-GTR-207

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