Colyton High is a government secondary school in St Marys with a dual focus on HSC pathways and vocational training.
NAPLAN well below national year-level averages; the result is a C+ overall.
Colyton High is a government secondary school in St Marys with a dual focus on HSC pathways and vocational training. It offers VET certificates in construction, hospitality, retail, business and entertainment alongside traditional subjects. The school runs Inspire, a gifted education program with enrichment classes, and U@Uni Academy to support university entry. Pastoral care is central to its culture, with a tight-knit community feel and dedicated support for students with additional learning needs. It suits families wanting flexible senior options and a school that knows its students well.
Colyton High School is also known as Colyton HS and CHS St Marys.
Colyton High School draws students from the Colyton HS (and 1 more zone).
Colyton High School has an overall SchoolRank score of 30.7/100, rated "Below average". This score is calculated from academic results, student growth, wellbeing, programs, and value for money. Academically, the school grades C+ (Below average) against other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 922 (16th percentile; the national average is 1,000).
In 2025 NAPLAN testing at Colyton High School, Year 7 students averaged 497 across the tested NAPLAN domains, well below the national average of 540 for that year level, and Year 9 students averaged 526, well below the national average of 569 for that year level. National averages are specific to each year level, because NAPLAN scores are scaled so older year levels score higher. A school-wide average can't be compared with a single national figure.
Colyton High School is a medium-sized government secondary school with approximately 765 students. It offers education for years 7-12. As a government school, enrolment is generally available to students living within the school's designated catchment zone. Families outside the zone may apply for out-of-area placement subject to availability.
Colyton High School is a government school, so there are no tuition fees. Families may be asked to contribute to voluntary school fees covering materials, excursions, and activities. The school grades C+ (Below average) for value for money, which weighs academic results against the cost of attendance.
Colyton High School has a student-to-teacher ratio of 12.6:1. This is below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 18% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 77%, which is below average.
The Year 12 completion rate is 71%.
Colyton High School is located in St Marys, NSW, in a major city. Its ICSEA is 922 (16th percentile; the national average is 1,000). ICSEA measures the advantage of a school's community, from its parents' education and occupation, not the school's quality. A school with a lower ICSEA and strong academic results may be teaching particularly effectively.