Income Inequality in Marquette County, WI was 9.46610 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Marquette County, WI reached a record high of 9.68075 in January of 2013 and a record low of 9.01739 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Marquette County, WI - last updated from the United States Federal Reserve on May of 2024.