Trinity Grammar School — Enrolment — Summer Hill, NSW

Enrolment Summary

Trinity Grammar School has 2,296 students enrolled across 13 year levels as of 2025. Total enrolment increased by 35 students (1.5%) from 2024.

Total Students2,296

Primary778

Secondary1,518

YoY Change (2024→2025)+35

Enrolment by Year Level — 2025

Pre-Year 1

81—

Year 1

82-1

Year 2

86-3

Year 3

112-2

Year 4

119-5

Year 5

149-1

Year 6

149—

Year 7

273-8

Year 8

282+41

Year 9

247+5

Year 10

249+12

Year 11

233-8

Year 12

234+5

20252024

Source: ACARA Enrolments by Grade (2025)

Total Enrolment Over Time

Trinity Grammar School enrolment from 2016 to 2025.

Source: ACARA School Profile (2016–2025)

Gender Balance

Currently 0 girls (0%) and 2,296 boys (100%).

100%

GirlsBoys

Source: ACARA School Profile (2016–2025)

Gender Breakdown by Year

YearGirlsBoysTotalGirls %

202502,2962,2960%

202402,2612,2610%

202302,2252,2250%

202202,2022,2020%

202102,1962,1960%

202002,1592,1590%

201902,1242,1240%

201802,0992,0990%

201702,0842,0840%

201602,0122,0120%

Year-on-Year Comparison

Year Level20242025Change

Pre-Y18181—

Year 18382-1

Year 28986-3

Year 3114112-2

Year 4124119-5

Year 5150149-1

Year 6149149—

Year 7281273-8

Year 8241282+41

Year 9242247+5

Year 10237249+12

Year 11241233-8

Year 12229234+5

Total2,2612,296+35

Source: ACARA Enrolments by Grade (2024–2025)