St Andrew's Cathedral School
Updated Oct 2026 · ACARA 2025Sydney, New South Wales 2000 · Sydney LGA
About St Andrew's Cathedral School
St Andrew's Cathedral School is an independent combined (K–12) school located in Sydney, New South Wales (2000), within the Sydney local government area. It caters for students from K to 12 and in 2025 enrolled 1,436 students (595 girls and 841 boys). The school is affiliated with Independent Schools NSW.
St Andrew's Cathedral School has an ICSEA value of 1189, indicating exceptionally high socio-educational advantage, among the most advantaged school communities in Australia. That places it in the 99th percentile of Australian schools. 76% of students come from the top socio-educational quarter and 1% from the bottom quarter.
The school employs 176 teachers (153.7 full-time equivalent) and 126 non-teaching staff, giving a student-to-teacher ratio of about 9.3 to 1. Enrolments have grown by 5% over the past five years.
On the Success Index, St Andrew's Cathedral School scores 88.4 out of 100, placing it in the top 5% of combined schools nationally and 5th of 314 combined schools in NSW (1st of 6 in the Sydney area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1189
- Students in the top advantage quarter (15%)76% of students
- Teacher resourcing (students per teacher) (15%)9.3 students per teacher
- Enrolment growth vs local area (5 years) (10%)+5% enrolments since 2020 (area median +5%)
- ICSEA trend (5 years) (10%)+18 ICSEA points since 2020
The Success Index summarises the academic environment of a school community using official ACARA data. It is not a measure of teaching quality or student results. Read the methodology.
Student profile
Distribution of students across socio-educational advantage (SEA) quarters, plus community characteristics.
Enrolments by year level
How St Andrew's Cathedral School's 1,436 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Andrew's Cathedral School have changed over the past decade.
Free academic assessment
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Schools near St Andrew's Cathedral School
Closest schools by straight-line distance, with their Success Index.
St Andrew's Cathedral Gawura School
Sydney · Independent primary · K-6
38 students · ICSEA 817 · 27 m away
Australian International High School
Sydney · Independent high school
· ICSEA 1028 · 174 m away
Macquarie Grammar School
Sydney · Independent high school · 7-12
84 students · ICSEA 1027 · 369 m away
Sydney Grammar School
Darlinghurst · Independent combined · K-12
1,925 students · ICSEA 1274 · 727 m away
St Mary's Cathedral College
Sydney · Catholic combined · K-12
937 students · ICSEA 1125 · 833 m away
Westbourne College Sydney
Ultimo · Independent high school · 10-12
65 students · ICSEA 1153 · 847 m away
Ultimo Public School
Ultimo · Government primary · K-6
483 students · ICSEA 1088 · 863 m away
GOAL College
Ultimo · Independent special · 11-12
204 students · ICSEA 1027 · 872 m away
SCEGGS Darlinghurst
Darlinghurst · Independent combined · K-12
936 students · ICSEA 1209 · 1.2 km away
International Grammar School
Ultimo · Independent combined · K-12
1,224 students · ICSEA 1170 · 1.3 km away
Similar schools
Independent combined schools in NSW with a comparable ICSEA.
Loreto Kirribilli
Kirribilli · Independent combined · K-12
1,176 students · ICSEA 1189
SCECGS Redlands
Cremorne · Independent combined · K-12
1,680 students · ICSEA 1190
Knox Grammar School
Wahroonga · Independent combined · K-12
3,345 students · ICSEA 1187
Roseville College
Roseville · Independent combined · K-12
1,060 students · ICSEA 1191
Wenona School
North Sydney · Independent combined · K-12
1,385 students · ICSEA 1187
Emanuel School
Randwick · Independent combined · K-12
849 students · ICSEA 1186
Frequently asked questions
Is St Andrew's Cathedral School a public or private school?
St Andrew's Cathedral School is a Independent school, which makes it a non-government (private) school affiliated with Independent Schools NSW.
What year levels does St Andrew's Cathedral School offer?
St Andrew's Cathedral School offers K to 12. It is classified by ACARA as a combined school.
How many students attend St Andrew's Cathedral School?
In 2025, St Andrew's Cathedral School had 1,436 enrolled students (595 girls, 841 boys), a change of 5% over five years.
What is the ICSEA of St Andrew's Cathedral School?
St Andrew's Cathedral School has an ICSEA (Index of Community Socio-Educational Advantage) of 1189. The national average is 1000, so this indicates exceptionally high socio-educational advantage, among the most advantaged school communities in Australia. ICSEA reflects the school community, not teaching quality.
How does St Andrew's Cathedral School rank in NSW?
St Andrew's Cathedral School ranks 5th of 314 combined schools in New South Wales on the Success Index (88.4/100), and 17th of 1,259 nationally.
What is the student-to-teacher ratio at St Andrew's Cathedral School?
St Andrew's Cathedral School has about 9.3 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at St Andrew's Cathedral School?
In 2025, St Andrew's Cathedral School had 175 students in Year 7 and 176 in Year 12.
Is St Andrew's Cathedral School co-ed?
Yes. St Andrew's Cathedral School is a co-educational school enrolling both girls and boys.
What other schools are near St Andrew's Cathedral School?
There are 10 other schools within 15 km of St Andrew's Cathedral School in our database. Scroll up to the "Nearby schools" section to compare them by Success Index, ICSEA and enrolments, or use the Compare tool.
Where can I get tutoring near St Andrew's Cathedral School?
The closest Success Tutoring centre is Success Tutoring Lane Cove, about 7.5 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.