Unemployment Rate in Brown County, IL was 2.30% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Brown County, IL reached a record high of 9.60 in February of 1990 and a record low of 1.80 in October of 1997. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Brown County, IL - last updated from the United States Federal Reserve on May of 2024.