J J Cahill Memorial High School
Updated Oct 2026 · ACARA 2025Mascot, New South Wales 2020 · Bayside (NSW) LGA
About J J Cahill Memorial High School
J J Cahill Memorial High School is a public high school located in Mascot, New South Wales (2020), within the Bayside (NSW) local government area. It caters for students from 7 to 12 and in 2025 enrolled 298 students (128 girls and 170 boys).
J J Cahill Memorial High School has an ICSEA value of 987, indicating a socio-educational profile close to the national average of 1000. That places it in the 41st percentile of Australian schools. 9% of students come from the top socio-educational quarter and 39% from the bottom quarter.
The school employs 32 teachers (39.3 full-time equivalent) and 13 non-teaching staff, giving a student-to-teacher ratio of about 7.6 to 1. Enrolments have fallen by 7% over the past five years.
On the Success Index, J J Cahill Memorial High School scores 52.9 out of 100, placing it in the top 50% of secondary schools nationally and 259th of 539 secondary schools in NSW (7th of 7 in the Bayside (NSW) area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 987
- Students in the top advantage quarter (15%)9% of students
- Teacher resourcing (students per teacher) (15%)7.6 students per teacher
- Enrolment growth vs local area (5 years) (10%)-7% enrolments since 2020 (area median +1%)
- ICSEA trend (5 years) (10%)+11 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 J J Cahill Memorial High School's 298 students are spread across year levels in 2025.
Enrolment trend
How enrolments at J J Cahill Memorial High School have changed over the past decade.
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Schools near J J Cahill Memorial High School
Closest schools by straight-line distance, with their Success Index.
St Therese Catholic Primary School
Mascot · Catholic primary · K-6
608 students · ICSEA 1089 · 222 m away
Mascot Public School
Mascot · Government primary · P-6
397 students · ICSEA 1035 · 767 m away
Gardeners Road Public School
Rosebery · Government primary · K-6
393 students · ICSEA 1058 · 832 m away
Eastlakes Public School
Eastlakes · Government primary · K-6
154 students · ICSEA 1046 · 1.2 km away
St Joseph's Catholic Primary School
Rosebery · Catholic primary · K-2
150 students · ICSEA 1112 · 1.3 km away
Botany Public School
Botany · Government primary · K-6
232 students · ICSEA 1062 · 1.8 km away
St Bernard's Catholic Primary School
Botany · Catholic primary · K-6
287 students · ICSEA 1119 · 2.0 km away
Pagewood Public School
Botany · Government primary · K-6
207 students · ICSEA 1085 · 2.0 km away
Green Square Public School
Zetlands · Government primary · K-6
107 students · ICSEA 1122 · 2.2 km away
St Michael's Catholic Primary School
Daceyville · Catholic primary · K-6
371 students · ICSEA 1104 · 2.3 km away
Similar schools
Government secondary schools in NSW with a comparable ICSEA.
Richmond High School
Richmond · Government high school · 7-12
750 students · ICSEA 987
Tuggerah Lakes Secondary College The Entrance Campus
Long Jetty · Government high school · 7-12
756 students · ICSEA 987
Great Lakes College Senior Campus
Tuncurry · Government high school · 11-12
349 students · ICSEA 988
Kingsgrove High School
Kingsgrove · Government high school · 7-12
672 students · ICSEA 986
Cecil Hills High School
Cecil Hills · Government high school · 7-12
1,342 students · ICSEA 986
Elderslie High School
Elderslie · Government high school · 7-12
857 students · ICSEA 988
Frequently asked questions
Is J J Cahill Memorial High School a public or private school?
J J Cahill Memorial High School is a public (government) school run by the New South Wales education department.
What year levels does J J Cahill Memorial High School offer?
J J Cahill Memorial High School offers 7 to 12. It is classified by ACARA as a secondary school.
How many students attend J J Cahill Memorial High School?
In 2025, J J Cahill Memorial High School had 298 enrolled students (128 girls, 170 boys), a change of -7% over five years.
What is the ICSEA of J J Cahill Memorial High School?
J J Cahill Memorial High School has an ICSEA (Index of Community Socio-Educational Advantage) of 987. The national average is 1000, so this indicates a socio-educational profile close to the national average of 1000. ICSEA reflects the school community, not teaching quality.
How does J J Cahill Memorial High School rank in NSW?
J J Cahill Memorial High School ranks 259th of 539 secondary schools in New South Wales on the Success Index (52.9/100), and 678th of 1,472 nationally.
What is the student-to-teacher ratio at J J Cahill Memorial High School?
J J Cahill Memorial High School has about 7.6 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at J J Cahill Memorial High School?
In 2025, J J Cahill Memorial High School had 54 students in Year 7 and 38 in Year 12.
Is J J Cahill Memorial High School co-ed?
Yes. J J Cahill Memorial High School is a co-educational school enrolling both girls and boys.
What other schools are near J J Cahill Memorial High School?
There are 10 other schools within 15 km of J J Cahill Memorial High 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 J J Cahill Memorial High School?
The closest Success Tutoring centre is Success Tutoring Rockdale, about 5.6 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.