Income Inequality in Grainger County, TN was 17.21713 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Grainger County, TN reached a record high of 17.21713 in January of 2022 and a record low of 10.88816 in January of 2017. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Grainger County, TN - last updated from the United States Federal Reserve on May of 2024.