Unemployment Rate in Allen County, OH was 4.10% in March of 2026, according to the United States Federal Reserve. Historically, Unemployment Rate in Allen County, OH reached a record high of 18.60 in April of 2020 and a record low of 3.30 in April of 2019. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Allen County, OH - last updated from the United States Federal Reserve on June of 2026.