Income Inequality in Cumberland County, IL was 9.26292 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Cumberland County, IL reached a record high of 10.48904 in January of 2019 and a record low of 9.10805 in January of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Cumberland County, IL - last updated from the United States Federal Reserve on May of 2024.