Income Inequality in Marshall County, IA was 10.10132 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Marshall County, IA reached a record high of 11.18385 in January of 2021 and a record low of 9.21171 in January of 2016. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Marshall County, IA - last updated from the United States Federal Reserve on May of 2024.