Grant High School is a co-ed government secondary in Mount Gambier known for its working agricultural farm.
NAPLAN 39 points below national year-level averages; the result is a C+ overall.
Grant High School is a co-ed government secondary in Mount Gambier known for its working agricultural farm. The school offers specialisms in agricultural studies and performing arts and languages. It has purpose-built art rooms, subject-specific science laboratories, and an Independent Learning Centre for students aged 16-21 seeking flexible pathways. It suits students drawn to hands-on learning and creative pursuits.
Grant High School is also known as Grant HS and GHS Mount Gambier.
Grant High School has an overall SchoolRank score of 39.4/100, 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 954 (26th percentile; the national average is 1,000).
In 2025 NAPLAN testing at Grant High School, Year 7 students averaged 500 across the tested NAPLAN domains, well below the national average of 540 for that year level, and Year 9 students averaged 531, 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.
Grant High School is a medium-sized government secondary school with approximately 978 students. It offers education for years U, 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.
Grant 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.
Grant High School has a student-to-teacher ratio of 14.0:1. This is around the national average of approximately 14:1, meaning class sizes are typical for Australian schools. Support staff make up 36% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 87%, which is below average.
Grant High School is located in Mount Gambier, SA, in outer regional Australia. Its ICSEA is 954 (26th 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.