Income Inequality in Middlesex County, MA was 17.27025 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Middlesex County, MA reached a record high of 17.27025 in January of 2022 and a record low of 15.35343 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Middlesex County, MA - last updated from the United States Federal Reserve on May of 2024.