Income Inequality in Mercer County, MO was 11.33845 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Mercer County, MO reached a record high of 11.83567 in January of 2019 and a record low of 10.02661 in January of 2014. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Mercer County, MO - last updated from the United States Federal Reserve on May of 2024.