[1] Voters approved a referendum in June 1961 by a better than ten-to-one margin to provide for a $2.6 million bond covering the costs of construction.

[5] Through the late 1950s, students from Waldwick had attended Ramsey High School, which faced capacity issues, forcing the shift to Midland Park.

[15] The school offers a wide range of extracurricular activities that all students have a chance to join.

[16] Drama Club allows students to participate in different musicals and perform them in a series of three shows for one weekend in the spring.

[17][18][19] Prior to the realignment that took effect in the fall of 2010, Waldwick was a member of the smaller Bergen-Passaic Scholastic League (BPSL).

[27] The 1995 boys soccer team finished the season with a 24-0 record after winning the Group I state title that year, defeating Arthur P. Schalick High School in the championship game and winning the Bergen County Tournament by a score of 2-1 against Ridgewood High School in the tournament final.

[28][29] The team has won multiple North I, Group I state sectional championships, including in the 2006 fall season with a 1–0 victory over local rival Midland Park High School in the tournament final.

[30] The boys' basketball team won the North I, Group I state sectional championship in 2000 with a 62–49 win against Henry P. Becton Regional High School.