Income Inequality in Greene County, IL was 14.19342 Ratio in January of 2024, according to the United States Federal Reserve. Historically, Income Inequality in Greene County, IL reached a record high of 14.19342 in January of 2024 and a record low of 9.79293 in January of 2012. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Greene County, IL - last updated from the United States Federal Reserve on April of 2026.