White to Non-White Racial Dissimilarity (5-year estimate) Index for St. Lucie County, FL was 33.85% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for St. Lucie County, FL reached a record high of 37.49 in January of 2020 and a record low of 28.37 in January of 2013. 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 St. Lucie County, FL - last updated from the United States Federal Reserve on May of 2024.