The Hills Grammar School is an independent co-ed school set across 53 acres of bushland in Kenthurst, offering a guided-inquiry based curriculum that encourages active, exploratory learning.
NAPLAN well above the national average at every tested year level; the result is an A- overall.
The Hills Grammar School is an independent co-ed school set across 53 acres of bushland in Kenthurst, offering a guided-inquiry based curriculum that encourages active, exploratory learning. The school is known for its HG Voices music and performance program and fosters a progressive, inquiry-led approach. Families drawn here value a tight-knit community where students engage deeply with ideas and creative expression.
The Hills Grammar School is also known as Thehills and HGS Kenthurst.
The Hills Grammar School has an overall SchoolRank score of 73.4/100, rated "Excellent". This score is calculated from academic results, student growth, wellbeing, programs, and value for money. Academically, the school grades A− (Excellent) against other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 1164 (97th percentile; the national average is 1,000).
In 2025 NAPLAN testing at The Hills Grammar School, Year 3 students averaged 479 across the tested NAPLAN domains, well above the national average of 407 for that year level, and Year 5 students averaged 549, well above the national average of 490 for that year level, and Year 7 students averaged 604, well above the national average of 540 for that year level, and Year 9 students averaged 624, well above the national average of 569 for that year level. Relative to national year-level averages, the school's strongest domain is Grammar. 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.
The Hills Grammar School is a large Independent combined school with approximately 1,208 students. It offers education for years K-12. As an Independent school, enrolment typically involves an application process. Contact the school directly for enrolment criteria, waiting lists, and open day information.
The Hills Grammar School has approximate annual tuition fees of $26,441. Actual fees may vary by year level, and additional costs for uniforms, camps, and extracurricular activities typically apply. The school grades B (Average) for value for money, which weighs academic results against the cost of attendance.
The Hills Grammar School has a student-to-teacher ratio of 11.2:1. This is below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 40% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 94%, which is excellent.
The Year 12 completion rate is 74%.
The Hills Grammar School is located in Kenthurst, NSW, in a major city. Its ICSEA is 1164 (97th 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.