White to Non-White Racial Dissimilarity (5-year estimate) Index for Macomb County, MI was 39.47% in January of 2023, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Macomb County, MI reached a record high of 39.47 in January of 2023 and a record low of 32.64 in January of 2009. 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 Macomb County, MI - last updated from the United States Federal Reserve on September of 2025.