We can reveal that ethnic segregation of pupils - seen as a trigger for Britain's worst race riots in 2001 - is just as bad as ever.
In fact, in some areas we found the splitting of primary schools into either nearly ALL white British children, or almost NONE, has actually grown far worse.
Despite communities mixing in our multi-cultural towns, many children are being taught separately - sometimes in classrooms less than a mile apart.
The northern towns of Bradford and Oldham saw vicious street battles between white and Asian gangs back in the summer of 2001, in which hundreds of policemen were injured. Yet schools in both areas are still deeply divided.
For example, the 200 pupils at St Thomas's Leesfield Church of England Primary, Oldham, are 90.4 per cent white British.
Yet, less than a mile away, the 400 kids at Clarksfield Primary are classed as 92.3 per cent Pakistani and less than 2.9 per cent are of white British origin.
Of the town's 77 large primary schools educating more than 100 pupils aged five to 11, our study found TWENTY-NINE were "majority white" (that's more than 90 per cent white Brits).
In stark contrast, a further THIRTEEN were "minority white" (less than 10 per cent white Brits).
That means in more than half the town's big primaries kids of different ethnic backgrounds scarcely mix at all.
Cllr Javid Iqbal, of Oldham's Race Equality Partnership, said: "Integration is definitely needed. We hold events to try to bring the communities together but it's just a fact of life that people tend to stay in their comfort zones."
It's a similar picture in Bradford, West Yorks. Records show 92.9 per cent of pupils at Windhill C-of-E Primary are white British.
Yet a mile-and-a-half away, at Frizinghall Primary, the white Brits total is just 1.8 per cent.
We found 35 of the town's 150 large primaries were "majority white" and 34 "minority white
Local councillor Ralph Berry said: "You're right to think more schools are becoming of a single ethnicity. Of course it's a worry, and it doesn't accord with what most people want."
In Rochdale there are 27 "majority white" and nine "minority white" schools, up from just five in 2005. Deeplish Primary has NO white British pupils but, a few hundred yards away, St Mary's C-of-E has 91.2 per cent of them.
And in Blackburn-with-Darwen, 24 out of 43 primaries are classed as "extreme" - up from just six five years ago. Thirteen are "white majority" and 11 "white minority".
Our figures come from the Department for Education's 2010 census. They show the problem is growing nationwide, with 36 local authorities listing schools which fit both racial extremes.
Experts fear little is being done to tackle the problem. Prof Ted Cantle wrote the 2001 riots report to the Home Office which called for a cap to be set, barring schools from admitting more than 75 per cent from one ethnic group.
He said extreme segregation in schools left racial groups leading "parallel lives". But his proposals were rejected and ministers simply imposed a "duty to promote community cohesion" on schools - based on "twinning" visits. Last night Prof Cantle told us: "This policy doesn't respond to the problem. I worry it's growing faster than the schools' ability to cope."
He explained: "Twinning attempts to teach children about others, but it's an artificial rather than a natural meeting."
A Department of Education spokesman said: "The admissions code is clear that a school's selection policy must not disadvantage any particular racial group.
"All schools have a duty to promote community cohesion. But, ultimately, it's down to parents which school their child attends."
