White to Non-White Racial Dissimilarity (5-year estimate) Index for Acadia Parish, LA was 49.06% in January of 2024, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Acadia Parish, LA reached a record high of 55.92 in January of 2021 and a record low of 40.99 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 Acadia Parish, LA - last updated from the United States Federal Reserve on April of 2026.