The competition included segments of problem-solving activities in the areas of mathematics, science, social studies and language arts.

[28] In the late 1970s and early 1980s, Marlboro High School's Debate Team was nationally recognized as a consistent powerhouse and frequent invitee to elite, invitation only events.

Subsequently, the team was invited to compete in the 2017 national We the People: The Citizen and the Constitution competition, representing the state of New Jersey in the process.

Students are encouraged to apply and practice the academic knowledge gained in the classroom through participation in various competitions sponsored by the Future Business Leaders of America and the Federal Reserve Bank.

These co-curricular activities, as well as other opportunities afforded by our close proximity to financial and corporate institutions in the greater metropolitan area, play an integral role in students' personal and academic growth.

Students will be prepared to attend a college or university with a foundation secured in human relations skills, rigorous academic training, and an appreciation for both social and ethical responsibility.

[39] In 1994, the football team won the Central Jersey Group IV state sectional championship, completing a 10–1 season with a 27–13 victory over Piscataway High School at Giants Stadium.

[40][41] In 2001, his senior year, Ty Jensen was the first Marlboro track and field athlete to win a title in every championship race during a single season.

[42] The girls' basketball team won the 2003 Group IV state championship, defeating East Orange Campus High School by a score of 84–69 in the final game of the playoff tournament.

[43][44] In 2015, the girls varsity basketball team won the Central Jersey Group IV state sectional championship, defeating Monroe Township High School in overtime by a score of 60–52 in the tournament final.

[46] In 2003, the boys' tennis team won the Group IV state championship, defeating Westfield High School in the finals.

[7] In order to balance enrollment, district lines are redrawn for the six schools to address issues with overcrowding and spending in regards to transportation.

Schools in the district (with 2023–24 enrollment data from the National Center for Education Statistics[53]) with their attendance zones for incoming students are:[54][55][56][57]