Income Inequality in Martin County, FL was 17.80263 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Martin County, FL reached a record high of 18.92231 in January of 2021 and a record low of 16.41461 in January of 2010. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Martin County, FL - last updated from the United States Federal Reserve on May of 2024.