[4] Historically, Paramus shared many municipal services with the township of Rochelle Park, including schooling.
[16] The Paramus High School Spartans[17] compete in the Big North Conference, which is comprised of public and private high schools in Bergen and Passaic counties, and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association.
[19] Until the NJSIAA's 2009 realignment, the school had participated in Division A of the Northern New Jersey Interscholastic League, which included high schools located in Bergen, Essex and Passaic counties, and was separated into three divisions based on NJSIAA size classification.
[21] The football team competes in the Patriot Red division of the North Jersey Super Football Conference, which includes 112 schools competing in 20 divisions, making it the nation's biggest football-only high school sports league.
[25] The Paramus High School sports program has had much success over the years, most notably in baseball, volleyball, and wrestling.
[29] The 1981 team won the inaugural NJSIAA state title, winning the Group III-IV championship in two games (15–8 and 15–11) against finals opponent Northern Valley / Old Tappan.
[31] The 1994 girls' volleyball team finished the season with a record of 22–2, winning the league and Group III state title, but lost to Paramus Catholic High School in the Bergen County tournament.
[35] The ice hockey team won the Handchen Cup in 2000 with a 6–4 win against Brick Memorial High School in the championship game at the South Mountain Arena.