Students at Sacred Heart are often involved in a variety of after-school activities. There are over 15 clubs, including Key Club, which is a group of student ambassadors who work with the admissions office, and UNITY, which promotes diversity among students. There are also many other organizations on campus, including Student Council, Students Against Destructive Decisions (SADD), National Honor Society (NHS), and three language honor societies. Sacred Heart has three student publications: Alethea, the campus newspaper; Clelian, the student yearbook; and Prism, a literary magazine featuring student poems, short stories, and artwork.