Real Gross Domestic Product: Information (NAICS 51) in Illinois was 48750.20000 Mil. of Chn. 2009 $ in January of 2025, according to the United States Federal Reserve. Historically, Real Gross Domestic Product: Information (NAICS 51) in Illinois reached a record high of 48750.20000 in January of 2025 and a record low of 17722.40000 in January of 2006. Trading Economics provides the current actual value, an historical data chart and related indicators for Real Gross Domestic Product: Information (NAICS 51) in Illinois - last updated from the United States Federal Reserve on September of 2025.