St Marys Senior High School is a government co-ed secondary serving a tight-knit community with a strong pastoral focus.
St Marys Senior High School is a government co-ed secondary serving a tight-knit community with a strong pastoral focus. The school runs a High Potential and Gifted Education program alongside a dedicated additional learning support unit, ensuring students across the ability spectrum receive targeted support. It's known for particularly strong Visual Arts and Drama programs, making it a natural fit for creative students seeking both specialist teaching and a supportive environment.
St Marys Senior High School is also known as SMSHS, St Marys SHS and SMSHS St Marys.
1 HSC Top Achievers — #129 of 240 New South Wales schools.
St Marys Senior High School draws students from the St Marys Snr HS.
St Marys Senior High School is a medium-sized government secondary school with approximately 926 students. It offers education for years 11-12. 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.
St Marys Senior 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.
St Marys Senior High School has a student-to-teacher ratio of 13.7:1. This is around the national average of approximately 14:1, meaning class sizes are typical for Australian schools. Support staff make up 16% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 92%, which is good.
In the 2025 HSC, 1 student at St Marys Senior High School was an all-round achiever, with results in the top band across 10 or more units. The school had 1 top achiever place across 2025 HSC courses.
St Marys Senior High School is located in St Marys, NSW, in a major city. Its ICSEA is 1052 (69th 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.