Income Inequality in Decatur County, IA was 12.29454 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Decatur County, IA reached a record high of 16.03460 in January of 2011 and a record low of 12.11303 in January of 2021. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Decatur County, IA - last updated from the United States Federal Reserve on May of 2024.