AustraliaNSWSydneySt Mary's Cathedral College

St Mary's Cathedral College

CatholicCombinedK-12
Sydney, NSW 2000 · Major Cities
Students937enrolled
Ratio1:13student:teacher
SEIFA10/10advantage decile
School Snapshot
Catholic
Combined · K-12
ICSEA1125
vs National+125 (avg 1000)
Students937
SEIFA10/10
SettingMajor Cities
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St Mary's Cathedral

Key Indicators

How this school compares to national averages

Nat. avg: 1,000
1125+125
ICSEA Score
Nat. avg: 434
937
Total Enrolments
Nat. avg: 12.3
13:1+0.7
Student : Teacher
Nat. avg: 26.9%
61%
LBOTE
Nat. avg: 11.7%
1%
Indigenous Students
Higher = less disadvantaged
10 / 10
SEIFA IRSD Decile
Nat. avg: 25%
49%+24pp
SEA Top Quarter
K-12
Year Range

Overview

St Mary's Cathedral College is a catholic combined school in Sydney, New South Wales, serving K-12. The school has 937 enrolled students. Its ICSEA value is 1125 (well above average). The student-to-teacher ratio is 13:1. The school is located in a SEIFA IRSD decile 10 area.

Source: ACARA School Profile 2025 (2025)

Key Facts

SectorCatholic
School TypeCombined
Year RangeK-12
Governing BodyCatholic Schools NSW
Postcode2000
RemotenessMajor Cities
ACARA ID43464

Student Background

Total Enrolments937
Gender Split127 girls / 810 boys
Indigenous Students1%
Language Background Other Than English61%
English Background39%

Socio-Educational Advantage Distribution

Bottom quarter
4%
Lower middle
15%
Upper middle
32%
Top quarter
49%
Source: ACARA School Profile (2025)

Enrolment by Year Level

937 students across 13 year levels (2025)

One year before Yr 121
Yr 113
Yr 27
Yr 325
Yr 421
Yr 532
Yr 632
Yr 7155
See full breakdown
Source: ACARA Enrolments by Grade (2025)

Staffing

Teaching Staff75 (72.3 FTE)
Non-Teaching Staff24 (17.5 FTE)
Total Staff99
Student:Teacher Ratio13:1
Source: ACARA School Profile (2025)