Income Inequality in Hillsdale County, MI was 10.82706 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Hillsdale County, MI reached a record high of 12.20780 in January of 2016 and a record low of 10.28018 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Hillsdale County, MI - last updated from the United States Federal Reserve on May of 2024.