Canberra Girls Grammar is an independent, academically selective school offering the International Baccalaureate from primary through to completion.
NAPLAN well above the national average at every tested year level; the result is a B+ overall.
Canberra Girls Grammar is an independent, academically selective school offering the International Baccalaureate from primary through to completion. It specialises in gifted and talented education and maintains structured, intensive programs across music, debating, and outdoor learning. The school supports twice-exceptional learners through dedicated inclusive programs. A female boarding community provides pastoral oversight, and the overall character is traditional and academically rigorous. It suits families seeking strong pastoral care alongside challenging, IB-based learning within a structured environment.
Canberra Girls Grammar School is also known as CGGS and CGGS Deakin.
Canberra Girls Grammar School has an overall SchoolRank score of 68.3/100, rated "Good". 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 1177 (98th percentile; the national average is 1,000).
In 2025 NAPLAN testing at Canberra Girls Grammar School, Year 3 students averaged 458 across the tested NAPLAN domains, well above the national average of 407 for that year level, and Year 5 students averaged 532, well above the national average of 490 for that year level, and Year 7 students averaged 596, well above the national average of 540 for that year level, and Year 9 students averaged 620, 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.
Canberra Girls Grammar School is a large Independent combined school with approximately 1,203 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.
Canberra Girls Grammar School has a student-to-teacher ratio of 10.7:1. This is below the national average of approximately 14:1, meaning students generally receive more individual attention. Support staff make up 41% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 92%, which is good.
The Year 12 completion rate is 100%. 93% of students received a university offer.
Canberra Girls Grammar School is located in Deakin, ACT, in a major city. Its ICSEA is 1177 (98th 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.