USDA Forest Service - Forest Inventory & Analysis

The estimates presented are based on data retrieved from the FIA database (09/17/2020) and may not reflect the most recent data available from the FIA

program. Note – this publication does not include estimates of uncertainty. The most current data and sampling error for the estimates above can be found

by visiting https://www.fia.fs.fed.us/.

*Average annual estimates are based on data collected across 5-10 years and may not be indicative of the nominal year presented in the title by itself.

State and

Local

9.44%

Federal

7.85%

Private

82.71%

Illinois, 2019

2014 2019

4.85

4.97

Area of forest land

(million acres)

2.00

Number of live trees 2.08

on forest land

(billion trees)

9.32

Volume of live trees 9.26

on forest land

(billion cubic feet)

Annual Net Change

Annual Removals

Annual Mortality

Annual Gross Growth

All live (million cubic feet)

41,698 acres of nonforest

revert back to forest annually*

29,254 acres of forest land

convert annually* to nonforest

55,633 acres of forest land

are treated by cutting

(harvest, thinning, etc.) annually*

13,612 acres of forest land

are disturbed annually* by weather events

Forests of

This resource update is a brief look at some of the basic

metrics that describe the status of and changes to forest

resources in Illinois. This information is based on field data

collected using the USDA Forest Service Forest Inventory

and Analysis (FIA) annualized sample design, and it is

updated yearly.

Illinois has 5,987 sample plots across the State, of which

1,065 are currently forested. Each year, about 10-20 percent

of these plots are visited and measured by field crews. Data

used in this update were accessed from the FIA database on

09/17/2020.

13% forested*

Illinois has an estimated 4,854,960 acres of forest land.

* Percent forest is forest area/total area. Percent forest with water removed from total area is 14%.

16

3

3

3

6

9

8

7

5

Forest land ownership

3,810 acres of forest land

are disturbed annually* by fire
Archived Versions

This report and archived past versions can be found on the USDA Forest Service publication database, Treesearch using keywords "Forest

Inventory" and "Illinois" here: https://www.fs.usda.gov/treesearch/.

How to cite this publication

USDA Forest Service. 2020. Forests of Illinois, 2019. Resource Update FS-228. Madison, WI: U.S. Department of Agriculture, Forest Service.

2p. https://doi.org/10.2737/FS-RU-228 .

Additional Resources

The application that produced this resource update was developed using data from the USDA Forest Service Forest Inventory and Analysis database

(FIADB): https://apps.fs.usda.gov/fia/datamart/datamart_excel.html .

Tables for Illinois, 2019 can be found here: https://doi.org/10.2737/FS-RU-228-Tables

The FIA one-click application can be found here: https://doi.org/10.2737/FIA-One-Click-State-Report-v1.2

Bechtold, W.A.; Patterson, P.L., eds. 2005. The enhanced Forest Inventory and Analysis program—national sampling design and estimation procedures.

Gen. Tech. Rep. SRS–80. Asheville, NC: U.S. Department of Agriculture Forest Service, Southern Research Station. 85 p.

https://doi.org/10.2737/SRS-GTR-80 .

The U.S. Department of Agriculture (USDA) is an equal opportunity provider, employer, and lender.

National Woodland Owner Survey

The National Woodland Owner Survey (NWOS) collects and reports on multiple attributes of forest land ownership. Details of the NWOS program can be

found here: https://www.fia.fs.fed.us/nwos/.

The most recent NWOS Factsheet for Illinois can be found here: https://www.nrs.fs.fed.us/pubs/52427/.

NOTE: Some of the above links will not be active until the resource update has been approved for official publication.

Illinois, 2019

Forests of