Hamilton Secondary College is one of the most comprehensive secondary schools in South Australia, catering for students of all ages and capabilities.

The Secondary Campus consists of the Middle School (Years 7-9) and the Senior School (Years 10-12).  Adult students from 18 to the very mature study a wide range of pre-SACE, SACE, certificate, pre-university and vocational courses in the Adult Campus. Students with disabilities are catered for with individual programs within the purpose built Disability Unit.