White to Non-White Racial Dissimilarity (5-year estimate) Index for Santa Cruz County, AZ was 60.01% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Santa Cruz County, AZ reached a record high of 60.01 in January of 2022 and a record low of 38.86 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 Santa Cruz County, AZ - last updated from the United States Federal Reserve on May of 2024.