Observations

Q1 2026: 59,761.9

Updated: Jun 25, 2026 10:21 AM CDT

Units:

Millions of Chained 2017 Dollars,

Seasonally Adjusted Annual Rate

Frequency:

Quarterly

Notes

Title	Release Dates

Real Gross Domestic Product by Industry: Private Industries: Information for Illinois	2016-07-27	2021-06-21
Real Gross Domestic Product: Information (NAICS 51) in Illinois	2021-06-22	2023-12-04
Real Gross Domestic Product: Information (51) in Illinois	2023-12-05	2026-06-25

Source

U.S. Bureau of Economic Analysis	2016-07-27	2026-06-25

Release

Gross Domestic Product (GDP) by State	2016-07-27	2021-02-15
Gross Domestic Product by State	2021-02-16	2026-06-25

Units

Millions of Chained 2009 Dollars	2016-07-27	2018-11-13
Millions of Chained 2012 Dollars	2018-11-14	2023-12-04
Millions of Chained 2017 Dollars	2023-12-05	2026-06-25

Frequency

Quarterly	2016-07-27	2026-06-25

Seasonal Adjustment

Seasonally Adjusted Annual Rate	2016-07-27	2026-06-25

Notes

For more information about this release go to http://www.bea.gov/newsreleases/regional/gdp_state/qgsp_newsrelease.htm.	2016-07-27	2021-06-21
Information about this release can be found here (https://www.bea.gov/data/gdp/gdp-state). For information about BEA industries and other regional definitions, visit their Regional Economic Accounts: Regional Definitions website (https://apps.bea.gov/regional/definitions/).	2021-06-22	2026-06-25

Real Gross Domestic Product: Information (51) in Illinois (ILINFORQGSP)