The Academy of the Holy Angels is an all-female Roman Catholic college preparatory high school located in Demarest, Bergen County, New Jersey, United States, serving students in ninth through twelfth grade. The school operates under the auspices of the Roman Catholic Archdiocese of Newark. The Academy of the Holy Angels draws students from North Jersey, Rockland County, New York, and surrounding areas. As of the 2013-14 school year, the school had an enrollment of 572 students and 49.8 classroom teachers (on an FTE basis) for a Student–teacher ratio of 11.5:1.