White to Non-White Racial Dissimilarity (5-year estimate) Index for Charles Mix County, SD was 37.47% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Charles Mix County, SD reached a record high of 48.49 in January of 2017 and a record low of 8.78 in January of 2009. Trading Economics provides the current actual value, an historical data chart and related indicators for White to Non-White Racial Dissimilarity (5-year estimate) Index for Charles Mix County, SD - last updated from the United States Federal Reserve on May of 2024.