The high school was expanded in the mid 1960s and by the 1970s there were approximately 1,200 students in grades 9 through 12.

[9] The Saddle Brook High School Falcons[3] participate in the North Jersey Interscholastic Conference, which is comprised of small-enrollment schools in Bergen, Hudson, Morris and Passaic counties, and was created following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).

[10][11][12] Prior to realignment that took effect in the fall of 2010, Saddle Brook was a member of the smaller Bergen-Passaic Scholastic League (BPSL).

[17] The girls' cross country team won the Group II state championship in 1976 and 1978.

[22] Saddle Brook's track and field team, led by Coach Howard Schuman, won the 2005 indoor and outdoor Group I NJSIAA state track championships.

[23][24] Under Head Coach Darren White, the Saddle Brook High football team saw a resurgence in its program from 1999 to 2003.