AustraliaNSWWollongong WestThe Illawarra Grammar School

The Illawarra Grammar School

IndependentCombinedK-12
Wollongong West, NSW 2500 · Major Cities
Students970enrolled
Ratio1:9.7student:teacher
SEIFA9/10advantage decile
Enrolment
970
total students
Girls464
Boys506
Year RangeK-12
TypeCombined
The Illawarra

Enrolment Summary

The Illawarra Grammar School has 970 students enrolled across 13 year levels as of 2025. Total enrolment increased by 37 students (4.0%) from 2024.

Total Students970
Primary447
Secondary523
YoY Change (2024→2025)+37

Enrolment by Year Level — 2025

Pre-Year 1
49-8
Year 1
60+9
Year 2
54-5
Year 3
64+11
Year 4
62-8
Year 5
77+3
Year 6
81+9
Year 7
106+35
Year 8
70-28
Year 9
94-7
Year 10
101+38
Year 11
60-37
Year 12
92+25
20252024
Source: ACARA Enrolments by Grade (2025)

Total Enrolment Over Time

The Illawarra Grammar School enrolment from 2016 to 2025.

698778858938101993016861178201877719786207752183222906239332497025
Source: ACARA School Profile (20162025)

Gender Balance

Currently 464 girls (48%) and 506 boys (52%).

48%
52%
659749839929101943039537737138537640042243046450046644340640139943248450350616171819202122232425
GirlsBoys
Source: ACARA School Profile (20162025)

Gender Breakdown by Year

YearGirlsBoysTotalGirls %
202546450697048%
202443050393346%
202342248490647%
202240043283248%
202137639977549%
202038540178649%
201937140677748%
201837744382046%
201739546686146%
201643050093046%

Year-on-Year Comparison

Year Level20242025Change
Pre-Y15749-8
Year 15160+9
Year 25954-5
Year 35364+11
Year 47062-8
Year 57477+3
Year 67281+9
Year 771106+35
Year 89870-28
Year 910194-7
Year 1063101+38
Year 119760-37
Year 126792+25
Total933970+37
Source: ACARA Enrolments by Grade (20242025)