St Aloysius College Cronulla
Updated Oct 2026 · ACARA 2025Cronulla, New South Wales 2230 · Sutherland LGA
About St Aloysius College Cronulla
St Aloysius College Cronulla is a catholic high school located in Cronulla, New South Wales (2230), within the Sutherland local government area. It caters for students from 7 to 12 and in 2025 enrolled 482 students (227 girls and 255 boys). The school is affiliated with Catholic Schools NSW.
St Aloysius College Cronulla has an ICSEA value of 1089, indicating above-average socio-educational advantage. That places it in the 81st percentile of Australian schools. 32% of students come from the top socio-educational quarter and 6% from the bottom quarter.
The school employs 45 teachers (41.0 full-time equivalent) and 15 non-teaching staff, giving a student-to-teacher ratio of about 11.8 to 1. Enrolments have grown by 7% over the past five years.
On the Success Index, St Aloysius College Cronulla scores 80.7 out of 100, placing it in the top 5% of secondary schools nationally and 18th of 539 secondary schools in NSW (1st of 18 in the Sutherland area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1089
- Students in the top advantage quarter (15%)32% of students
- Teacher resourcing (students per teacher) (15%)11.8 students per teacher
- Enrolment growth vs local area (5 years) (10%)+7% enrolments since 2020 (area median -3%)
- ICSEA trend (5 years) (10%)+23 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 Cronulla's 482 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Aloysius College Cronulla have changed over the past decade.
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Schools near St Aloysius College Cronulla
Closest schools by straight-line distance, with their Success Index.
St Francis de Sales Catholic Primary School
Woolooware · Catholic primary · K-6
175 students · ICSEA 1124 · 381 m away
Cronulla Public School
Cronulla · Government primary · K-6
516 students · ICSEA 1064 · 439 m away
Our Lady of Mercy Catholic College Burraneer
Cronulla · Catholic high school · 7-12
421 students · ICSEA 1086 · 747 m away
St Aloysius Catholic Primary School
Cronulla · Catholic primary · K-6
178 students · ICSEA 1123 · 926 m away
Burraneer Bay Public School
Cronulla · Government primary · K-6
573 students · ICSEA 1101 · 1.1 km away
Woolooware Public School
Cronulla · Government primary · K-6
462 students · ICSEA 1086 · 1.2 km away
Cronulla South Public School
Cronulla · Government primary · K-6
261 students · ICSEA 1093 · 1.5 km away
Woolooware High School
Woolooware · Government high school · 7-12
788 students · ICSEA 1063 · 1.8 km away
Caringbah Public School
Caringbah · Government primary · K-6
394 students · ICSEA 1088 · 1.9 km away
Cronulla High School
Cronulla · Government high school · 7-12
1,205 students · ICSEA 1050 · 2.2 km away
Similar schools
Catholic secondary schools in NSW with a comparable ICSEA.
St Patrick's Marist College
Dundas · Catholic high school · 7-12
1,070 students · ICSEA 1089
St Columba's Catholic College
Springwood · Catholic high school · 7-12
1,112 students · ICSEA 1088
Trinity Catholic College
Adamstown · Catholic high school · 7-11
849 students · ICSEA 1090
Marist Catholic College Penshurst
Mortdale · Catholic high school · 7-12
1,343 students · ICSEA 1090
St Luke's Catholic College (Secondary)
Marsden Park · Catholic high school · 7-12
940 students · ICSEA 1088
Catherine McAuley Westmead
Westmead · Catholic high school · 7-12
1,210 students · ICSEA 1087
Frequently asked questions
Is St Aloysius College Cronulla a public or private school?
St Aloysius College Cronulla is a Catholic school, which makes it a non-government (private) school affiliated with Catholic Schools NSW.
What year levels does St Aloysius College Cronulla offer?
St Aloysius College Cronulla offers 7 to 12. It is classified by ACARA as a secondary school.
How many students attend St Aloysius College Cronulla?
In 2025, St Aloysius College Cronulla had 482 enrolled students (227 girls, 255 boys), a change of 7% over five years.
What is the ICSEA of St Aloysius College Cronulla?
St Aloysius College Cronulla has an ICSEA (Index of Community Socio-Educational Advantage) of 1089. The national average is 1000, so this indicates above-average socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does St Aloysius College Cronulla rank in NSW?
St Aloysius College Cronulla ranks 18th of 539 secondary schools in New South Wales on the Success Index (80.7/100), and 60th of 1,472 nationally.
What is the student-to-teacher ratio at St Aloysius College Cronulla?
St Aloysius College Cronulla has about 11.8 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at St Aloysius College Cronulla?
In 2025, St Aloysius College Cronulla had 86 students in Year 7 and 136 in Year 12.
Is St Aloysius College Cronulla co-ed?
Yes. St Aloysius College Cronulla is a co-educational school enrolling both girls and boys.
What other schools are near St Aloysius College Cronulla?
There are 10 other schools within 15 km of St Aloysius College Cronulla 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 Cronulla?
The closest Success Tutoring centre is Success Tutoring Hurstville, about 11 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.