Income Inequality in Marion County, IN was 16.10084 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Marion County, IN reached a record high of 17.10796 in January of 2017 and a record low of 13.82205 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Marion County, IN - last updated from the United States Federal Reserve on May of 2024.