Income Inequality in Johnston County, OK was 13.61885 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Johnston County, OK reached a record high of 15.00418 in January of 2011 and a record low of 10.74112 in January of 2020. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Johnston County, OK - last updated from the United States Federal Reserve on May of 2024.