St Leo's is a co-ed Catholic secondary college in Wahroonga with a strongly pastoral culture and tight-knit community feel.
NAPLAN modestly above national year-level averages; the result is a B overall.
St Leo's is a co-ed Catholic secondary college in Wahroonga with a strongly pastoral culture and tight-knit community feel. The school is known for its strength in sport and creative and performing arts. It offers learning diversity support for students who need it. St Leo's suits families looking for a school that combines academic learning with flourishing co-curricular life, grounded in a caring community environment.
St Leo's Catholic College is also known as SLCC and SLCC Wahroonga.
1 HSC Top Achievers — #129 of 240 New South Wales schools.
St Leo's Catholic College has an overall SchoolRank score of 52.4/100, rated "Average". This score is calculated from academic results, student growth, wellbeing, programs, and value for money. Academically, the school grades B+ (Good) against other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 1113 (88th percentile; the national average is 1,000).
In 2025 NAPLAN testing at St Leo's Catholic College, Year 7 students averaged 565 across the tested NAPLAN domains, above the national average of 540 for that year level, and Year 9 students averaged 583, above the national average of 569 for that year level. Relative to national year-level averages, the school's strongest domain is Numeracy. 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.
St Leo's Catholic College is a large Catholic secondary school with approximately 1,055 students. It offers education for years 7-12. As a Catholic school, enrolment typically involves an application process. Contact the school directly for enrolment criteria, waiting lists, and open day information.
St Leo's Catholic College has approximate annual tuition fees of $7,398. Actual fees may vary by year level, and additional costs for uniforms, camps, and extracurricular activities typically apply. The school grades B− (Slightly below average) for value for money, which weighs academic results against the cost of attendance.
St Leo's Catholic College has a student-to-teacher ratio of 13.5:1. 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 91%, which is good.
The school had 1 top achiever place across 2025 HSC courses. The Year 12 completion rate is 100%. 70% of students received a university offer.
St Leo's Catholic College is located in Wahroonga, NSW, in a major city. Its ICSEA is 1113 (88th 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.