Income Inequality in Mason County, MI was 11.67551 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Mason County, MI reached a record high of 13.52153 in January of 2018 and a record low of 10.81665 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Mason County, MI - last updated from the United States Federal Reserve on May of 2024.