Unemployment Rate in Clinton County, OH was 3.80% in December of 2025, according to the United States Federal Reserve. Historically, Unemployment Rate in Clinton County, OH reached a record high of 19.70 in January of 2010 and a record low of 2.80 in November of 1997. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Clinton County, OH - last updated from the United States Federal Reserve on April of 2026.