Income Inequality in Hamilton County, IL was 10.31539 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Hamilton County, IL reached a record high of 13.52410 in January of 2016 and a record low of 10.31539 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Hamilton County, IL - last updated from the United States Federal Reserve on May of 2024.