Income Inequality in Jefferson County, WI was 10.11191 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Jefferson County, WI reached a record high of 10.87745 in January of 2020 and a record low of 9.00672 in January of 2016. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Jefferson County, WI - last updated from the United States Federal Reserve on May of 2024.