School districts with the most students enrolled in charter schools, 2011-12
1 Los Angeles 98,576
2 New York City 48,057
3 Detroit 47,086
4 Philadelphia 46,801
5 Chicago 44,870
6 Miami 41,767
7 Houston 40,549
8 New Orleans 32,597
9 Washington, D.C. 31,562
10 Broward County, Fla. 30,438
Source: National Alliance for Public Charter Schools