AustraliaNSWWollongong WestThe Illawarra Grammar School

The Illawarra Grammar School

IndependentCombinedK-12
Wollongong West, NSW 2500 · Major Cities
970Students
1159ICSEA
1:9.7Ratio
9/10SEIFA
The Illawarra

Key Indicators

How this school compares to national averages

Nat. avg: 1,000
1159+159
ICSEA Score
Nat. avg: 434
970
Total Enrolments
Nat. avg: 12.3
9.7:1-2.6
Student : Teacher
Nat. avg: 26.9%
36%
LBOTE
Nat. avg: 11.7%
2%
Indigenous Students
Higher = less disadvantaged
9 / 10
SEIFA IRSD Decile
Nat. avg: 25%
64%+39pp
SEA Top Quarter
K-12
Year Range

Overview

The Illawarra Grammar School is a independent combined school in Wollongong West, New South Wales, serving K-12. The school has 970 enrolled students. Its ICSEA value is 1159 (well above average). The student-to-teacher ratio is 9.7:1. The school is located in a SEIFA IRSD decile 9 area.

Source: ACARA School Profile 2025 (2025)

Key Facts

SectorIndependent
School TypeCombined
Year RangeK-12
Governing BodyIndependent Schools NSW
Postcode2500
RemotenessMajor Cities
ACARA ID43944

Student Background

Total Enrolments970
Gender Split464 girls / 506 boys
Indigenous Students2%
Language Background Other Than English36%
English Background64%

Socio-Educational Advantage Distribution

Bottom quarter
2%
Lower middle
9%
Upper middle
25%
Top quarter
64%
Source: ACARA School Profile (2025)

Enrolment by Year Level

970 students across 13 year levels (2025)

One year before Yr 149
Yr 160
Yr 254
Yr 364
Yr 462
Yr 577
Yr 681
Yr 7106
See full breakdown
Source: ACARA Enrolments by Grade (2025)

Staffing

Teaching Staff108 (99.8 FTE)
Non-Teaching Staff52 (45.4 FTE)
Total Staff160
Student:Teacher Ratio9.7:1
Source: ACARA School Profile (2025)