[1] West Side High School opened on September 14, 1925, in a building designed to provide students with classrooms, an auditorium, gyms, and other facilities, serving 520 boys and 809 girls.

[13] The West Side High School Roughriders[2] compete in the Super Essex Conference, which is comprised of public and private high schools in Essex County and was established following a reorganization of sports leagues in Northern New Jersey by the New Jersey State Interscholastic Athletic Association (NJSIAA).

[14] Prior to the 2009 realignment, the team had been in the Skyline Division of the Northern Hills Conference, which included schools in Essex, Morris and Passaic counties.

[20] The boys' cross country team won the Group IV state championship in 1949, 1950 (as co-champion with Asbury Park High School), 1951, 1953 and 1954.

[30] The boys basketball team won the Group II state championship in 2016 and 2017, defeating Camden High School in the tournament final both years.

[33] The team advanced to the Tournament of Champions both seasons, coming into the 2016 ToC seeded fourth and falling 71–62 to fifth-seeded Teaneck High School in the quarterfinals; the 2017 team was the fifth seed, again falling in the quarterfinals to Teaneck, this time in overtime by a score of 70–62 to finish the season with a record of 25–7.