White to Non-White Racial Dissimilarity (5-year estimate) Index for Aiken County, SC was 25.29% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Aiken County, SC reached a record high of 28.83 in January of 2016 and a record low of 25.05 in January of 2020. 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 Aiken County, SC - last updated from the United States Federal Reserve on May of 2024.