White to Non-White Racial Dissimilarity (5-year estimate) Index for Dorchester County, MD was 40.39% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Dorchester County, MD reached a record high of 44.15 in January of 2013 and a record low of 38.47 in January of 2021. 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 Dorchester County, MD - last updated from the United States Federal Reserve on May of 2024.