Unemployment Rate in Hardin County, IL was 5.50% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Hardin County, IL reached a record high of 16.30 in July of 1996 and a record low of 3.90 in May of 1995. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Hardin County, IL - last updated from the United States Federal Reserve on April of 2026.