State school · Secondary

J J Cahill Memorial High School

Mascot, 2020 — in Mascot

SectorSchools

State

Secondary school

NSW school data

Year levels

—

official range

NSW school data

ICSEA

987

national average is 1000

ACARA 2025

Suburb

Mascot

SA2 this campus sits in

ABS boundary

School information

J J Cahill Memorial High School is a state secondary school in Mascot, Sydney. It had 298 students, per NSW school data. Its state-school catchment covers Eastlakes, Rosebery - Beaconsfield and Mascot and parts of nearby suburbs. Its ICSEA is 987, below the national average of 1000 (41st percentile nationally). NAPLAN results for J J Cahill Memorial High School are published on its My School profile (ACARA).

Student background

ACARA · 2025

ICSEA measures the socio-educational advantage of a school's intake against the national average of 1000. The quarters bar shows how its students spread across the four national bands; an average school sits at 25% in each.

987ICSEA — 13 points below the national average of 1000, higher than 41% of Australian schools

−13

820national average · 10001180

vs avg

Socio-educational advantage

Bottom quarter 39%Lower-middle quarter 29%Upper-middle quarter 23%Top quarter 9%

39%29%23%9%

All Australian students — 25% in each quarter

Who’s enrolled

298students in 2025

Girls and boys

Girls 128 · 43%
Boys 170 · 57%

Language background

Language other than English 66%
English only 34%
Not stated 0%

Aboriginal or Torres Strait Islander

7% of enrolment

J J Cahill Memorial High School has an ICSEA of 987, below the national average of 1000 and higher than 41% of Australian schools. 9% of its students are in the top quarter of socio-educational advantage and 39% in the bottom quarter, against 25% in each quarter across all Australian schools. It enrolled 298 students in 2025 (128 girls, 170 boys), 7% Aboriginal or Torres Strait Islander and 66% with a language background other than English.

Show the data table

J J Cahill Memorial High School — student background, ACARA School Profile 2025
Measure	Value
ICSEA	987
ICSEA vs national average (1000)	-13
ICSEA percentile	41
Bottom quarter of advantage	39%
Lower-middle quarter of advantage	29%
Upper-middle quarter of advantage	23%
Top quarter of advantage	9%
Total enrolment	298
Girls	128 (43%)
Boys	170 (57%)
Language other than English	66%
English only	34%
Not stated	0%
Aboriginal or Torres Strait Islander	7%

NAPLAN results and student progress for J J Cahill Memorial High School are on My School, ACARA’s official site.

School details

Sector: State school
Type: Secondary
Enrolment: 298 students
ICSEA: 987 · 41st percentile
Address: Mascot 2020

Catchment area

NSW government schools enrol students who live inside their catchment. This is a simplified outline — catchments can split a street, so confirm your exact address on the NSW Department of Education’s School Finder.

Map

Secondary (Years 7–12)

Covers Eastlakes, Mascot, Rosebery - Beaconsfield.

Also parts of Erskineville - Alexandria, Kensington (NSW), Sydenham - Tempe - St Peters, Zetland.

J J Cahill Memorial High School: common questions

Is J J Cahill Memorial High School a public or private school?

J J Cahill Memorial High School is a government (public) secondary school in Mascot, Sydney. NSW government schools enrol students who live inside their catchment area.

How many students go to J J Cahill Memorial High School?

J J Cahill Memorial High School had 298 students enrolled, per NSW school data.

What suburbs are in the J J Cahill Memorial High School catchment?

J J Cahill Memorial High School's enrolment catchment covers Eastlakes, Rosebery - Beaconsfield and Mascot, plus parts of nearby suburbs. Catchments can split a street, so confirm your address on the NSW Department of Education's School Finder.

What is J J Cahill Memorial High School's ICSEA?

J J Cahill Memorial High School has an ICSEA of 987, below the national average of 1000 (41st percentile nationally), per the ACARA School Profile 2025. ICSEA reflects the socio-educational background of a school's students, not its results.

Where is J J Cahill Memorial High School located?

J J Cahill Memorial High School is at Mascot 2020.

Other schools in Mascot

Mascot Public SchoolState · Primary

School list: NSW Government open data — ACARA Schools NSW, via the NSW data portal, CC BY 4.0. Catchments: NSW Department of Education “School intake zones” dataset, CC BY 4.0. ICSEA & student background: ACARA School Profile 2025. NAPLAN: myschool.edu.au (ACARA).