Income Inequality in Bennett County, SD was 27.35974 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Bennett County, SD reached a record high of 27.35974 in January of 2022 and a record low of 11.25658 in January of 2016. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Bennett County, SD - last updated from the United States Federal Reserve on May of 2024.