Income Inequality in Clay County, IL was 12.52474 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Clay County, IL reached a record high of 13.56824 in January of 2010 and a record low of 9.65495 in January of 2015. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Clay County, IL - last updated from the United States Federal Reserve on May of 2024.