Gross Domestic Product: Private Industries in Illinois was 1003995.20000 Mil. of $ in October of 2023, according to the United States Federal Reserve. Historically, Gross Domestic Product: Private Industries in Illinois reached a record high of 1003995.20000 in October of 2023 and a record low of 520236.50000 in January of 2005. Trading Economics provides the current actual value, an historical data chart and related indicators for Gross Domestic Product: Private Industries in Illinois - last updated from the United States Federal Reserve on April of 2024.