Income Inequality in Grant County, OK was 14.78347 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Grant County, OK reached a record high of 14.78347 in January of 2022 and a record low of 8.56005 in January of 2017. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Grant County, OK - last updated from the United States Federal Reserve on May of 2024.