The freshman campus for 9th grade was closed in 2019; new freshmen are incorporated into the main high school.

[7] The school offers several AP courses in such subjects as English Literature and Composition, United States History, and World History.

[8] Also offered are CTE (Career and Technical Education) classes through the Career Education Associates of North Central Illinois, a partnership with the Regional Alternative School, and a program in which students can take college level classes through the nearby Rock Valley College.

Sports offered include football, cross country, golf, track & field, soccer, tennis, swimming, softball, baseball, basketball, bowling, wrestling, cheerleading, dance team, and girls flag football.

[9] Harlem has a Science Olympiad Team that often wins the regional competition and proceeds to the state level.