Income Inequality in Custer County, OK was 18.03060 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Custer County, OK reached a record high of 18.03060 in January of 2022 and a record low of 13.56971 in January of 2016. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Custer County, OK - last updated from the United States Federal Reserve on May of 2024.