FROM

80 percent of kids in Boston’s affluent areas go to high-quality public schools. In Mattapan? Five percent

–PAT GREENHOUSE/GLOBE STAFF/FILE 2013

A computerized system that Boston uses to assign students to schools is exacerbating segregation among the city’s schools while locking out many black and Latino students from high-performing schools, according to a report obtained by the Globe.

The divides between those who have access to the best schools and those who don’t could not be more stark. More than 80 percent of kindergarten students in Charlestown, Back Bay, Beacon Hill, and central Boston who enroll in the city’s school system attend a high-quality school — as measured by test scores — while only 5 percent of kindergartners in Mattapan do, according to the report by the Boston Area Research Initiative at Northeastern University.

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The findings illustrate the sluggish progress Boston has made in the four decades since court-ordered busing began in closing the gap in educational opportunities: The city’s historically white neighborhoods still have a disproportionate share of high-quality schools, while historically black neighborhoods, like Mattapan, have fewer options, even though they have a higher density of students, the report found.