This page contains a dynamic scatterplot which will load new data as you proceed though the page. These updates will be announced in accordance to your screen reader's implementation of aria-region live.

There are many ways to measure segregation. The primary index of segregation that we show in the Explorer is the Normalized Exposure Index (also known as the variance ratio index or the relative diversity index). It represents the difference in the composition of the average schools or neighborhoods of two population subgroups. For example, White-Black school segregation is defined as the difference between the proportion of White students in the average White student’s school and the proportion of White students in the average Black student’s school. If all schools have the same proportion of White students, then this difference will be 0, reflecting no segregation. If all White students attend schools that are 100% White, and all Black students attend schools that are 0% White, then this difference will be 1, indicating complete segregation. Other measures of segregation can be downloaded on the Get the Data page.