St Aloysius' College
Updated Oct 2026 · ACARA 2025Kirribilli, New South Wales 2061 · North Sydney LGA
#45 of 314 combined schools in NSW
#111 of 1,259 nationally
About St Aloysius' College
St Aloysius' College is an independent boys' combined (K–12) school located in Kirribilli, New South Wales (2061), within the North Sydney local government area. It caters for students from 3 to 12 and in 2025 enrolled 1,347 students. The school is affiliated with Catholic Schools NSW.
St Aloysius' College has an ICSEA value of 1223, indicating exceptionally high socio-educational advantage, among the most advantaged school communities in Australia. That places it in the 99th percentile of Australian schools. 85% of students come from the top socio-educational quarter and 0% from the bottom quarter.
The school employs 143 teachers (116.7 full-time equivalent) and 67 non-teaching staff, giving a student-to-teacher ratio of about 11.5 to 1. Enrolments have grown by 6% over the past five years.
On the Success Index, St Aloysius' College scores 80.2 out of 100, placing it in the top 10% of combined schools nationally and 45th of 314 combined schools in NSW (6th of 6 in the North Sydney area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1223
- Students in the top advantage quarter (15%)85% of students
- Teacher resourcing (students per teacher) (15%)11.5 students per teacher
- Enrolment growth vs local area (5 years) (10%)+6% enrolments since 2020 (area median +5%)
- ICSEA trend (5 years) (10%)-9 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 Aloysius' College's 1,347 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Aloysius' College have changed over the past decade.
Free academic assessment
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Schools near St Aloysius' College
Closest schools by straight-line distance, with their Success Index.
Loreto Kirribilli
Kirribilli · Independent combined · K-12
1,176 students · ICSEA 1189 · 251 m away
SHORE - Sydney Church of England Grammar School
North Sydney · Independent combined · K-12
1,724 students · ICSEA 1205 · 1.3 km away
Observatory Hill Environmental Education Centre
The Rocks · Government combined
· 1.3 km away
Fort Street Public School
Sydney · Government primary · K-6
284 students · ICSEA 1094 · 1.6 km away
Monte Sant' Angelo Mercy College
North Sydney · Independent high school · 7-12
1,186 students · ICSEA 1179 · 1.6 km away
Conservatorium High School
Sydney · Government high school · 7-12
156 students · ICSEA 1194 · 1.6 km away
Wenona School
North Sydney · Independent combined · K-12
1,385 students · ICSEA 1187 · 1.7 km away
North Sydney Public School
Waverton · Government primary · K-6
756 students · ICSEA 1144 · 1.8 km away
Cameragal Montessori School
North Sydney · Independent primary · K-6
40 students · ICSEA 1179 · 1.9 km away
Neutral Bay Public School
Neutral Bay · Government primary · K-6
641 students · ICSEA 1169 · 1.9 km away
Similar schools
Independent combined schools in NSW with a comparable ICSEA.
Abbotsleigh
Wahroonga · Independent combined · K-12
1,634 students · ICSEA 1217
Ascham School
Edgecliff · Independent combined · K-12
1,182 students · ICSEA 1217
SCEGGS Darlinghurst
Darlinghurst · Independent combined · K-12
936 students · ICSEA 1209
SHORE - Sydney Church of England Grammar School
North Sydney · Independent combined · K-12
1,724 students · ICSEA 1205
Reddam House
Woollahra · Independent combined
· ICSEA 1203
Roseville College
Roseville · Independent combined · K-12
1,060 students · ICSEA 1191
Frequently asked questions
Is St Aloysius' College a public or private school?
St Aloysius' College is a Independent school, which makes it a non-government (private) school affiliated with Catholic Schools NSW.
What year levels does St Aloysius' College offer?
St Aloysius' College offers 3 to 12. It is classified by ACARA as a combined school.
How many students attend St Aloysius' College?
In 2025, St Aloysius' College had 1,347 enrolled students (0 girls, 1,347 boys), a change of 6% over five years.
What is the ICSEA of St Aloysius' College?
St Aloysius' College has an ICSEA (Index of Community Socio-Educational Advantage) of 1223. 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 Aloysius' College rank in NSW?
St Aloysius' College ranks 45th of 314 combined schools in New South Wales on the Success Index (80.2/100), and 111th of 1,259 nationally.
What is the student-to-teacher ratio at St Aloysius' College?
St Aloysius' College has about 11.5 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at St Aloysius' College?
In 2025, St Aloysius' College had 189 students in Year 7 and 162 in Year 12.
Is St Aloysius' College co-ed?
No. St Aloysius' College is a boys' school.
What other schools are near St Aloysius' College?
There are 10 other schools within 15 km of St Aloysius' College 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 Aloysius' College?
The closest Success Tutoring centre is Success Tutoring Lane Cove, about 6.0 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.