Average Hourly Earnings of All Employees: Professional and Business Services in Illinois was 35.86000 $ per Hour in January of 2021, according to the United States Federal Reserve. Historically, Average Hourly Earnings of All Employees: Professional and Business Services in Illinois reached a record high of 35.86000 in January of 2021 and a record low of 27.69000 in January of 2008. Trading Economics provides the current actual value, an historical data chart and related indicators for Average Hourly Earnings of All Employees: Professional and Business Services in Illinois - last updated from the United States Federal Reserve on March of 2024.