[5] Constructed on a 40-acre (16 ha) plot of land, Delaware Township High School opened in September 1956 for students in grades 7–9.

Annually, the Lions face their crosstown rival the Cherry Hill East Cougars on Thanksgiving morning, a rivalry described by The Philadelphia Inquirer as "one of the best in South Jersey", in which the winner of the contest receives the Al DiBart Memorial Trophy, also known as "The Boot.

[27] Cherry Hill West had one of the best bowling teams in South Jersey going 72-3-1 in the 2006–07 season, led by Coach Irv Wolf.

[citation needed] The boys' baseball team won the South Jersey Group IV state sectional championship in 1967 and 1968.

[28] The 1989 team finished the season with a record of 24-1-1 after defeating West Milford by a score of 11–3 in the championship game at Princeton University to earn the Group III state title.

[32][33] The boys' swim team won the 2006 South Jersey Public A division title after an error made by the Cherry Hill East swim team in one of the events led the NJSIAA to overturn the initial result and hand the sectional title to Cherry Hill West.

The team won the South A state sectional title with a 90–80 win over crosstown rival Cherry Hill High School East.

[36] The girls' swim team won the 2007 South Jersey Public A division title over Cherry Hill East by a score of 98–72.

Led by longtime coach Nick Mitidieri, the team also won the 2007 Disney Cross Country Classic and placed 2nd in the South Jersey Group IV Sectional meet.

West music program made a trip to Boston, Massachusetts on April 12–15, 2007 with all choirs receiving Superior ratings.

The most popular performance of the year was Broadway Night, a show dedicated to well-known musicals, television theme songs and famous commercials.

In spring 2005 in Virginia Beach, the group captured 1st Place at a North American Music Festivals competition and received a Superior Rating.

(1981,2005), West Side Story (1984,2004), The Music Man (2003), The Wiz (2002), Annie (2001), Guys and Dolls (2000), Fiddler on the Roof (1999), Anything Goes (1998), and Oklahoma!