Income Inequality in Dukes County, MA was 19.38777 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Dukes County, MA reached a record high of 20.03396 in January of 2015 and a record low of 13.96435 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Dukes County, MA - last updated from the United States Federal Reserve on May of 2024.