Unemployment Rate in Cass County, IL was 5.10% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Cass County, IL reached a record high of 11.20 in February of 1990 and a record low of 3.10 in October of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Cass County, IL - last updated from the United States Federal Reserve on May of 2024.