Income Inequality in Shelby County, IL was 9.98081 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Shelby County, IL reached a record high of 10.09402 in January of 2017 and a record low of 8.99648 in January of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Shelby County, IL - last updated from the United States Federal Reserve on May of 2024.