White to Non-White Racial Dissimilarity (5-year estimate) Index for Union County, FL was 28.31% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Union County, FL reached a record high of 30.14 in January of 2020 and a record low of 17.40 in January of 2016. 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 Union County, FL - last updated from the United States Federal Reserve on May of 2024.