Harbor College is a member of the South Coast Conference of the California Association of Community Colleges in all intercollegiate sports except football. The South Coast Conference comprises Cerritos, El Camino, Harbor, Long Beach, Mount San Antonio, Pasadena, Los Angeles City, East Los Angeles, Los Angeles Southwest and Los Angeles Trade-Technical colleges. The South Coast Conference is recognized as one of the finest and most competitive in the state.
In football, Harbor College is a member of the Central Conference along with Citrus, Desert, El Camino, Long Beach City, Mt. San Antonio and Riverside colleges.
Harbor College sponsors women’s teams in basketball, soccer, softball and volleyball, and men’s teams in baseball, basketball, football and soccer.
The baseball team has won three state championships, the men's and women's basketball teams have each won two state titles, and the football team has won five bowl games. Harbor College has won the Team State Scholar Award in soccer and baseball.