Income Inequality in Roberts County, SD was 12.75873 Ratio in January of 2022, according to the United States Federal Reserve. Historically, Income Inequality in Roberts County, SD reached a record high of 14.13686 in January of 2018 and a record low of 12.44177 in January of 2015. Trading Economics provides the current actual value, an historical data chart and related indicators for Income Inequality in Roberts County, SD - last updated from the United States Federal Reserve on May of 2024.