Enrolment
Girls vs boys enrolment
2,296
reported total enrolments
0 girls
2,296 boys
0% girls100% boys
Trinity Grammar School reports 2,296 total enrolments, including 0 girls and 2,296 boys. The reported enrolment mix is 0% girls and 100% boys.
2025 Australia school profile data
Trinity Grammar School
Trinity Grammar School is a independent combined school in Summer Hill, New South Wales, with 2,296 reported enrolments, a student-teacher ratio of 9.0:1, and an ICSEA percentile of 98.
Summer Hill, NSW 2130IndependentCombinedK-12
IndependentCombinedBoys only
Quick school snapshot
What stands out in the profile
School model
Trinity Grammar School is listed as Independent and Combined, with a reported year range of K-12.
Enrolment size
The school reports 2,296 total enrolments, including 0 girls and 2,296 boys where available.
ICSEA context
The ICSEA value is 1,168, with percentile 98 in the current dataset.
Gender profile
The gender type is Boys only, with a reported mix of 0% girls and 100% boys.
Staff ratio
The student-teacher ratio is 9.0:1, based on 254.7 FTE teaching staff where available.
Local area
The campus is in Summer Hill, New South Wales, within Inner West.
Profile signals
School profile dashboard
The main student and context indicators are shown visually so the profile reads like a school intelligence page, not a spreadsheet.
Trinity Grammar School profile summary
Trinity Grammar School is listed as a independent combined school in Summer Hill, New South Wales. The profile reports 2,296 total enrolments, an ICSEA value of 1,168, and a student-teacher ratio of 9.0:1 where available. The reported year range is K-12, and the campus sits within Inner West local government area.
Socio-educational
ICSEA percentile
98
percentile where available
ICSEA
1,168
Trinity Grammar School sits at the 98 ICSEA percentile in the reported dataset.
SEA quarters
Socio-educational distribution
Bottom
1%
Lower-middle
7%
Upper-middle
24%
Top
67%
The socio-educational distribution lists 1% in the bottom quarter, 7% in the lower-middle quarter, 24% in the upper-middle quarter, and 67% in the top quarter.
Staff
Staff profile summary
Teaching staff
266
FTE teaching
254.7
Non-teaching
188
Student-teacher
9.0:1
The profile reports 266 teaching staff and 188 non-teaching staff, with a student-teacher ratio of 9.0:1.
Location
Campus location and area context
Location context combines suburb, postcode, administrative areas and a direct maps link where data is available.
- Suburb
- Summer Hill
- Postcode
- 2130
- State
- New South Wales
- Local government area
- Inner West
- Statistical Area Level 2
- Ashfield - South
- Statistical Area Level 3
- Strathfield - Burwood - Ashfield
- Statistical Area Level 4
- Sydney - Inner West
- Remoteness area
- Major Cities
Governance
Governance and official links
Official school and governing body links are included when the dataset provides them.
- Governing body
- Independent Schools NSW
- Governing body URL
- Visit website
- School URL
- Visit school website
- Campus type
- School Head Campus
- Reporting description
- Rolled Reporting
Community
Student community profile
Student community indicators are reported as percentages where available.
- Indigenous enrolment
- 0%
- Language background other than English: yes
- 61%
- Language background other than English: no
- 39%
- Language background other than English: not stated
- 0%
Nearby
Nearby and similar schools
Similar schools are selected from the same suburb first, then from the same local government area where needed.
CatholicPrimary
St Patrick's Catholic Primary School
Summer Hill, NSW 2130
Same suburb
- Enrol.
- 163
- ICSEA
- 1,136
- Ratio
- 14.2:1
GovernmentPrimary
Summer Hill Public School
Summer Hill, NSW 2130
Same suburb
- Enrol.
- 662
- ICSEA
- 1,167
- Ratio
- 17.8:1
GovernmentPrimary
Annandale North Public School
Annandale, NSW 2038
Same local area
- Enrol.
- 359
- ICSEA
- 1,148
- Ratio
- 18.9:1
GovernmentPrimary
Annandale Public School
Annandale, NSW 2038
Same local area
- Enrol.
- 363
- ICSEA
- 1,145
- Ratio
- 14.1:1
GovernmentSecondary
Ashfield Boys High School
Ashfield, NSW 2131
Same local area
- Enrol.
- 751
- ICSEA
- 1,074
- Ratio
- 13.7:1
GovernmentPrimary
Ashfield Public School
Ashfield, NSW 2131
Same local area
- Enrol.
- 474
- ICSEA
- 1,096
- Ratio
- 15.8:1
FAQ
Questions about Trinity Grammar School
How many students attend Trinity Grammar School?
Trinity Grammar School has 2,296 reported total enrolments. The student profile lists 0 girls and 2,296 boys where gender enrolment fields are available.
What type of school is Trinity Grammar School?
Trinity Grammar School is listed as a Independent school with school type Combined. The reported year range is K-12.
Where is Trinity Grammar School located?
Trinity Grammar School is located in Summer Hill, NSW 2130. The local government area is Inner West.
What is the ICSEA value of Trinity Grammar School?
The ICSEA value for Trinity Grammar School is 1,168 and the ICSEA percentile is 98. If either value is missing in the source data, it is shown as Not available rather than zero.
Is Trinity Grammar School boys-only, girls-only or co-educational?
Trinity Grammar School is listed as Boys only. The reported gender mix is 0% girls and 100% boys where percentage fields are available.
Data note
Built from structured 2025 school profile data
This page uses structured 2025 Australian school profile data. Some values may be unavailable where they are not reported in the source dataset. Profile pages are designed to make enrolment, ICSEA, location and school context easier to compare.