White to Non-White Racial Dissimilarity (5-year estimate) Index for Frederick County, MD was 38.10% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Frederick County, MD reached a record high of 46.45 in January of 2014 and a record low of 38.10 in January of 2022. 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 Frederick County, MD - last updated from the United States Federal Reserve on June of 2024.