Income Inequality in Williamson County, TN was 12.34777 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Williamson County, TN reached a record high of 12.90288 in January of 2016 and a record low of 11.81778 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Williamson County, TN - last updated from the United States Federal Reserve on May of 2024.