Real Gross Domestic Product: Professional, Scientific, and Technical Services (NAICS 54) in Illinois was 85823.30000 Mil. of Chn. 2009 $ in July of 2023, according to the United States Federal Reserve. Historically, Real Gross Domestic Product: Professional, Scientific, and Technical Services (NAICS 54) in Illinois reached a record high of 85823.30000 in July of 2023 and a record low of 50657.30000 in July of 2005. Trading Economics provides the current actual value, an historical data chart and related indicators for Real Gross Domestic Product: Professional, Scientific, and Technical Services (NAICS 54) in Illinois - last updated from the United States Federal Reserve on April of 2024.