[citation needed] The Carlmont campus was built on 42 acres (17 ha)[3] at a cost of about $2.5 million.

[3] The novel My Posse Don't Do Homework by LouAnne Johnson and subsequent movie adaptation Dangerous Minds (1995) were based upon her experience as a teacher at Carlmont in the 1990s.

[citation needed] In 2020, the Sequoia Union High School District discussed in a closed meeting the possibility of firing former Vice Principal Jennifer Cho of Carlmont High School for inappropriate relationships with male students.

In late May, Cho was removed from her position as Vice Principal of Carlmont High School and relocated elsewhere in the district.

[citation needed] As of the 2023-2024 school year, 208 (8.8%) of students were eligible for free or reduced-price lunch.