Government co-ed secondary school in Thornbury, VIC, serving 1123 students in years 7–12.
NAPLAN modestly above national year-level averages and a median ATAR of 70.0; the result is a B overall.
Thornbury High School is also known as Thornbury HS and THS Thornbury.
Median ATAR 70.0 ranks #149 of 522 Victoria schools. Within Victoria Government schools, ranks #44 of 295.
Thornbury High School draws students from the Thornbury High School (and 1 more zone).
Thornbury High School has an overall SchoolRank score of 58.3/100, rated "Average". This score is calculated from academic results, student growth, wellbeing, extracurricular programs, and value for money. Academically, the school scores 59/100, indicating moderate performance relative to other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 1067, well above the national average of 1,000.
In 2025 NAPLAN testing at Thornbury High School, Year 7 students averaged 560 across the tested NAPLAN domains, above the national average of 540 for that year level, and Year 9 students averaged 581, above the national average of 569 for that year level. Relative to national year-level averages, the school's strongest domain is Reading. 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.
Thornbury High School is a large government secondary school with approximately 1,123 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.
Thornbury 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 has a value score of 62/100 on SchoolRank, which compares educational outcomes relative to cost, government schools typically score well on this measure.
Thornbury High School has a student-to-teacher ratio of 12.2:1. This is below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 28% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 89%, which is moderate.
Thornbury High School has a median ATAR of 70.0. The apparent retention rate from Year 10 to Year 12 is 169%, indicating how many students stay through to graduation.
Thornbury High School is located in Thornbury, VIC, classified as a major cities school. With an ICSEA of 1067 (74th percentile), the school community's socio-educational advantage is around the national average. ICSEA measures the educational advantage of a school's community, not the school's quality, a lower ICSEA school with strong academic scores may indicate particularly effective teaching.