Income Inequality in McCurtain County, OK was 15.06940 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in McCurtain County, OK reached a record high of 15.06940 in January of 2022 and a record low of 13.13739 in January of 2018. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in McCurtain County, OK - last updated from the United States Federal Reserve on May of 2024.