Income Inequality in Monona County, IA was 9.81162 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Monona County, IA reached a record high of 13.15655 in January of 2018 and a record low of 9.81162 in January of 2022. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Monona County, IA - last updated from the United States Federal Reserve on May of 2024.