State school · Secondary

St Marys Senior High School

St Marys, 2760 — in St Marys - North St Marys

SectorSchools

State

Secondary school

NSW school data

Year levels

—

official range

NSW school data

ICSEA

1052

national average is 1000

ACARA 2025

Suburb

St Marys - North St Marys

SA2 this campus sits in

ABS boundary

School information

St Marys Senior High School is a state secondary school in St Marys - North St Marys, Sydney. It had 926 students, per NSW school data. Its ICSEA is 1052, above the national average of 1000 (69th percentile nationally). NAPLAN results for St Marys Senior 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.

1052ICSEA — 52 points above the national average of 1000, higher than 69% of Australian schools

+52

820national average · 10001180

vs avg

Socio-educational advantage

Bottom quarter 17%Lower-middle quarter 27%Upper-middle quarter 34%Top quarter 22%

17%27%34%22%

All Australian students — 25% in each quarter

Who’s enrolled

926students in 2025

Girls and boys

Girls 564 · 61%
Boys 362 · 39%

Language background

Language other than English 73%
English only 27%
Not stated 0%

Aboriginal or Torres Strait Islander

2% of enrolment

St Marys Senior High School has an ICSEA of 1052, above the national average of 1000 and higher than 69% of Australian schools. 22% of its students are in the top quarter of socio-educational advantage and 17% in the bottom quarter, against 25% in each quarter across all Australian schools. It enrolled 926 students in 2025 (564 girls, 362 boys), 2% Aboriginal or Torres Strait Islander and 73% with a language background other than English.

Show the data table

St Marys Senior High School — student background, ACARA School Profile 2025
Measure	Value
ICSEA	1052
ICSEA vs national average (1000)	+52
ICSEA percentile	69
Bottom quarter of advantage	17%
Lower-middle quarter of advantage	27%
Upper-middle quarter of advantage	34%
Top quarter of advantage	22%
Total enrolment	926
Girls	564 (61%)
Boys	362 (39%)
Language other than English	73%
English only	27%
Not stated	0%
Aboriginal or Torres Strait Islander	2%

NAPLAN results and student progress for St Marys Senior High School are on My School, ACARA’s official site.

School details

Sector: State school
Type: Secondary
Enrolment: 926 students
ICSEA: 1052 · 69th percentile
Address: St Marys 2760

St Marys Senior High School: common questions

Is St Marys Senior High School a public or private school?

St Marys Senior High School is a government (public) secondary school in St Marys - North St Marys, Sydney. NSW government schools enrol students who live inside their catchment area.

How many students go to St Marys Senior High School?

St Marys Senior High School had 926 students enrolled, per NSW school data.

What is St Marys Senior High School's ICSEA?

St Marys Senior High School has an ICSEA of 1052, above the national average of 1000 (69th percentile nationally), per the ACARA School Profile 2025. ICSEA reflects the socio-educational background of a school's students, not its results.

Where is St Marys Senior High School located?

St Marys Senior High School is at St Marys 2760, in the St Marys - North St Marys SA2.

Other schools in St Marys - North St Marys

Our Lady of The Rosary Primary SchoolNon-Government · Primary St Marys North Public SchoolState · Primary St Marys Public SchoolState · Primary St Marys South Public SchoolState · Primary Chifley College Dunheved CampusState · Secondary St Marys Flexible Learning CentreNon-Government · Special

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).