Income Inequality in Dubuque County, IA was 12.84751 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Dubuque County, IA reached a record high of 13.36755 in January of 2020 and a record low of 10.20582 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Dubuque County, IA - last updated from the United States Federal Reserve on May of 2024.