Unemployment Rate in Marion County, IA was 2.10% in April of 2026, according to the United States Federal Reserve. Historically, Unemployment Rate in Marion County, IA reached a record high of 9.30 in August of 2009 and a record low of 1.60 in April of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Marion County, IA - last updated from the United States Federal Reserve on June of 2026.