St. Mary High School is a four-year Roman Catholic high school located in Rutherford, in Bergen County, New Jersey, United States, operating under the auspices of the Roman Catholic Archdiocese of Newark. The school has been accredited by the Middle States Association of Colleges and Schools Commission on Secondary Schools since 2004.The school was established in September 1929, with instruction provided through the Sisters of St. Dominic of Caldwell, New Jersey. The school's building was dedicated and opened on November 5, 1932.As of the 2013-14 school year, the school had an enrollment of 308 students and 28.0 classroom teachers (on an FTE basis), for a student–teacher ratio of 11.0:1. The school's student body was 80.2% White, 5.2% Black, 6.8% Hispanic and 7.8% Asian.AthleticsThe St. Mary High School Gaels compete in the compete in the North Jersey Interscholastic Conference, which includes private and public high schools located in Bergen, Passaic, and Hudson counties, following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA). Prior to the NJSIAA's realignment that took effect in the fall of 2010, St. Mary was a member of the Bergen County Scholastic League (BCSL).