The index of dissimilarity measures the evenness of two racial groups distributed across an area in relation to a larger area. The scale ranges from zero, complete integration, to one, complete segregation. The index can be used with the analysis of racial segregation in trends dealing with socioeconomic class, immigration, nativity, and residence.
Generally, without immigration, the dissimilarity index between two races decreases as time goes on. This trend is most noticeable between black and white people, where the decrease of the dissimilarity index is at a faster than the rate of decrease between white people and Asian or Hispanic people. Despite the faster rate of decline and having the longest residence time,