Income Inequality in Jefferson County, IA was 20.01233 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Jefferson County, IA reached a record high of 20.01233 in January of 2022 and a record low of 14.39858 in January of 2016. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Jefferson County, IA - last updated from the United States Federal Reserve on May of 2024.