La Salle County, IL - White to Non-White Racial Dissimilarity (5-year estimate) Index for LaSalle County, IL was 33.87% in January of 2022, according to the United States Federal Reserve. Historically, La Salle County, IL - White to Non-White Racial Dissimilarity (5-year estimate) Index for LaSalle County, IL reached a record high of 33.87 in January of 2022 and a record low of 25.46 in January of 2011. Trading Economics provides the current actual value, an historical data chart and related indicators for La Salle County, IL - White to Non-White Racial Dissimilarity (5-year estimate) Index for LaSalle County, IL - last updated from the United States Federal Reserve on May of 2024.