Persons Unemployed 15 Weeks or Longer, as a Percent of the Civilian Labor Force for Illinois was 1.80000 %, 4-Qtr. Moving Average in October of 2023, according to the United States Federal Reserve. Historically, Persons Unemployed 15 Weeks or Longer, as a Percent of the Civilian Labor Force for Illinois reached a record high of 6.70000 in April of 2010 and a record low of 1.30000 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Persons Unemployed 15 Weeks or Longer, as a Percent of the Civilian Labor Force for Illinois - last updated from the United States Federal Reserve on April of 2024.