Unemployment Rate in Lee County, IL was 4.90% in March of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Lee County, IL reached a record high of 12.90 in April of 2020 and a record low of 2.70 in October of 1997. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Lee County, IL - last updated from the United States Federal Reserve on May of 2024.