The student population of 393 (2018–2019) and building size, are much smaller than adjacent public high schools such as Downers Grove North and Hinsdale Central.

The school was created as part of the newly formed CUSD 201 in Westmont in 1972, and first opened for education in September 1974.

In 2010, Westmont High School enrolled 573 students, 75.9% of whom were White, 9% of whom were Black, 8.8% of whom were Hispanic, and 3.7% were Asian/Pacific Islander.

[2] Westmont competes in the Metro Suburban Conference and Illinois High School Association.

[4] Pierre Pierce - Former Iowa Hawkeyes Basketball Player Joe Getty of Armstrong and Getty - Radio Talk Show Host Reggie Benjamin - Musician, record label owner