White to Non-White Racial Dissimilarity (5-year estimate) Index for St. Joseph County, IN was 40.91% in January of 2022, according to the United States Federal Reserve. Historically, White to Non-White Racial Dissimilarity (5-year estimate) Index for St. Joseph County, IN reached a record high of 48.74 in January of 2009 and a record low of 40.18 in January of 2021. 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. Joseph County, IN - last updated from the United States Federal Reserve on May of 2024.