Income Inequality in Sioux County, ND was 26.84787 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Sioux County, ND reached a record high of 35.66780 in January of 2021 and a record low of 24.68601 in January of 2014. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Sioux County, ND - last updated from the United States Federal Reserve on May of 2024.