Milwaukee Public Policy Forum:

The Forum’s 14th annual census of schools participating in the Milwaukee Parental Choice Program (MPCP) finds that voucher use by Milwaukee students grew 10% in 2011-12 to 23,198 voucher students, reversing last year’s enrollment decline. In addition, the data indicate that most voucher students are attending hyper-segregated schools that have low reading and math proficiency rates.
The dramatic increase in voucher use is likely due to changes to the program in the most recent state budget, which allowed schools outside Milwaukee to join MPCP and expanded eligibility to include families at higher income levels. As a result, more than 2,200 additional students are using vouchers worth $6,442 each, increasing the program’s cost by $14.2 million.
Most of the new voucher users appear to have already been enrolled in private school. In 56 schools, the number of new voucher users exceed the growth in total enrollment in the school, while in 13 schools voucher growth and enrollment growth were equal. Over the past 10 years, total enrollment in the schools participating in the program has grown by roughly 5,300 students, while the number of voucher users has increased over twice as much.