Unemployment Rate in Marion County, OH was 4.20% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Marion County, OH reached a record high of 15.80 in April of 2020 and a record low of 3.00 in April of 2023. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Marion County, OH - last updated from the United States Federal Reserve on May of 2024.