Unemployment Rate in Jefferson County, IA was 2.60% in February of 2024, according to the United States Federal Reserve. Historically, Unemployment Rate in Jefferson County, IA reached a record high of 9.80 in April of 2020 and a record low of 1.80 in November of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Unemployment Rate in Jefferson County, IA - last updated from the United States Federal Reserve on May of 2024.