High Quality Content by WIKIPEDIA articles! Xavier College Preparatory is a Catholic, all-female private high school in Phoenix, Arizona. It is located in the Roman Catholic Diocese of Phoenix, drawing students from 120 local schools and transfer students from around the world. Xavier was founded 65 years ago by the Sisters of Charity of the Blessed Virgin Mary, with 17 pioneer students. Currently (2008 2009) Xavier has over 1,200 (all female) students studying everything from aviation and architecture to chemistry and calculus. Students at Xavier share classes with students from Brophy College Preparatory, the all-boy Jesuit high school adjacent to Xavier.