White to Non-White Racial Dissimilarity (5-year estimate) Index for Buena Vista County, IA was 46.14% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for Buena Vista County, IA reached a record high of 52.89 in January of 2014 and a record low of 46.14 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 Buena Vista County, IA - last updated from the United States Federal Reserve on May of 2024.