Most of the segregation is concentrated in large metropolitan areas and their surrounding suburbs, with a trend increasing toward Northeastern metros. Over half of black students in New York, Maryland, Michigan and Illinois are enrolled in schools with a 90 percent or higher minority student body.
"Segregation is by far the most serious in the central cities of the largest metropolitan areas," the report says, "but it is also severe in central cities of all sizes and suburbs of the largest metro areas, which are now half nonwhite."
At the height of enforced integration, 44 percent of black students in the South attended mostly white schools, but in 2011 only 23 percent did.
Desegregation progress was very substantial for blacks, and occurred in the South from the mid- 1960s to the late l980s. Contrary to many claims, the South has not gone back to the level of segregation before Brown. It has lost all of the additional progress made after l967 but is still the least segregated region for black students.
The full report can be downloaded from UCLA's website.