Income Inequality in Johnson County, IN was 11.20175 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Johnson County, IN reached a record high of 11.20175 in January of 2022 and a record low of 9.66379 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Johnson County, IN - last updated from the United States Federal Reserve on May of 2024.