Founded in 1932 by the Dominican Sisters of the Congregation of Our Lady of the Rosary of Sparkill, New York, St. Edmund Preparatory High School is a co-educational, private Catholic high school located in Brooklyn , New York . We offer a 4-year academic, college preparatory and religious education curriculum. Originally founded as a parochial high school of St. Edmund Parish , we are currently an independent school, governed by a lay board of trustees. The school is chartered by the Board of Regents of the University of the State of New York , and accredited by the Middle States Association of Schools and Colleges. St. Edmund Prep serves approximately 750 students from Brooklyn and Queens .