Income Inequality in Nantucket County, MA was 12.77779 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Nantucket County, MA reached a record high of 21.47638 in January of 2010 and a record low of 12.50963 in January of 2016. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Nantucket County, MA - last updated from the United States Federal Reserve on June of 2024.