Income Inequality in Barnstable County, MA was 14.65407 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Barnstable County, MA reached a record high of 14.65407 in January of 2022 and a record low of 12.41799 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Barnstable County, MA - last updated from the United States Federal Reserve on May of 2024.