Charter schools are not for the most part allowed to discriminate in any way in terms of admissions other than a pure lottery. So, most likely, it’s just a function of who lives around there. I’m fairly certain in fact that those schools would love to have a more balanced ethnic makeup, as white and Asian kids generally score higher, have more active and supportive parents, etc., and thus make their job that much easier. But likely it’s not an option.
Thanks to all of you for your informative replies.
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