The National Alliance for Public Charter Schools estimates there are 6,002 charter schools in the U.S., about 6 percent of all schools. But those charters remain largely an urban choice, serving mostly minority youngsters. More than half the youngsters in charters overall—but one-third of those in traditional schools—are black or Hispanic. The alliance says that one-half of the country’s charters are in cities, although just one-quarter of traditional public schools are.
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