[TMWNN]

>Just switch over to looking at what district the applicants graduated (or what neighborhood they grew up in) from and try to equally represent all school districts over time.

This is basically what the University of Texas does; the top x% of applicants from each Texas high school is admitted, with other applicants competing against each other. I think it's a good way for a state school with the duty to educate its citizens to do so without using race as the determinant.