About Philadelphia’s small high schools
There are 32 small high schools in Philadelphia, defined as schools serving fewer than 700 students. Only six already existed as small high schools when the small schools movement began.
Twenty were created from existing schools by subdividing schools, turning annexes into schools, or converting middle schools into high schools.
Six started from scratch with new staffs: Academy at Palumbo, Constitution High School, High School of the Future, Science Learning Academy, and two Philadelphia Military Academies (at Leeds and at Elverson).
Twenty charter high schools also have enrollments under 700.
-Source: Research for Action, "Going Small" (2007)