White to Non-White Racial Dissimilarity (5-year estimate) Index for Greenville County, SC was 35.99% in January of 2023, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Greenville County, SC reached a record high of 37.67 in January of 2009 and a record low of 33.67 in January of 2018. 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 Greenville County, SC - last updated from the United States Federal Reserve on September of 2025.