Unemployment Rate in Marshall County, IA was 9.80% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Marshall County, IA reached a record high of 11.10 in April of 2020 and a record low of 1.70 in October of 1999. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Marshall County, IA - last updated from the United States Federal Reserve on May of 2024.