White to Non-White Racial Dissimilarity (5-year estimate) Index for Maricopa County, AZ was 43.62% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Maricopa County, AZ reached a record high of 47.30 in January of 2009 and a record low of 43.62 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 Maricopa County, AZ - last updated from the United States Federal Reserve on May of 2024.