White to Non-White Racial Dissimilarity (5-year estimate) Index for Wicomico County, MD was 31.26% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Wicomico County, MD reached a record high of 37.74 in January of 2009 and a record low of 30.68 in January of 2019. 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 Wicomico County, MD - last updated from the United States Federal Reserve on May of 2024.