Non-Government school · Combined

Trinity Grammar School

Summer Hill, 2130 — in Ashfield - South

SectorSchools

Non-Government

Combined school

NSW school data

Year levels

—

official range

NSW school data

ICSEA

1168

national average is 1000

ACARA 2025

Suburb

Ashfield - South

SA2 this campus sits in

ABS boundary

School information

Trinity Grammar School is a non-government combined primary–secondary school in Ashfield - South, Sydney. It had 2,296 students, per NSW school data. Its ICSEA is 1168, above the national average of 1000 (98th percentile nationally). NAPLAN results for Trinity Grammar School are published on its My School profile (ACARA).

Student background

ACARA · 2025

ICSEA measures the socio-educational advantage of a school's intake against the national average of 1000. The quarters bar shows how its students spread across the four national bands; an average school sits at 25% in each.

1168ICSEA — 168 points above the national average of 1000, higher than 98% of Australian schools

+168

820national average · 10001180

vs avg

Socio-educational advantage

Bottom quarter 1%Lower-middle quarter 7%Upper-middle quarter 24%Top quarter 67%

24%67%

All Australian students — 25% in each quarter

Who’s enrolled

2,296students in 2025

Language background

Language other than English 61%
English only 39%
Not stated 0%

Aboriginal or Torres Strait Islander

0% of enrolment

Trinity Grammar School has an ICSEA of 1168, above the national average of 1000 and higher than 98% of Australian schools. 67% of its students are in the top quarter of socio-educational advantage and 1% in the bottom quarter, against 25% in each quarter across all Australian schools. It enrolled 2,296 students in 2025, 0% Aboriginal or Torres Strait Islander and 61% with a language background other than English.

Show the data table

Trinity Grammar School — student background, ACARA School Profile 2025
Measure	Value
ICSEA	1168
ICSEA vs national average (1000)	+168
ICSEA percentile	98
Bottom quarter of advantage	1%
Lower-middle quarter of advantage	7%
Upper-middle quarter of advantage	24%
Top quarter of advantage	67%
Total enrolment	2,296
Language other than English	61%
English only	39%
Not stated	0%
Aboriginal or Torres Strait Islander	0%

NAPLAN results and student progress for Trinity Grammar School are on My School, ACARA’s official site.

School details

Sector: Non-Government school
Type: Combined
Enrolment: 2,296 students
ICSEA: 1168 · 98th percentile
Address: Summer Hill 2130

Trinity Grammar School: common questions

Is Trinity Grammar School a public or private school?

Trinity Grammar School is a non-government (non-government) combined primary–secondary school in Ashfield - South, Sydney.

How many students go to Trinity Grammar School?

Trinity Grammar School had 2,296 students enrolled, per NSW school data.

What is Trinity Grammar School's ICSEA?

Trinity Grammar School has an ICSEA of 1168, above the national average of 1000 (98th percentile nationally), per the ACARA School Profile 2025. ICSEA reflects the socio-educational background of a school's students, not its results.

Where is Trinity Grammar School located?

Trinity Grammar School is at Summer Hill 2130, in the Ashfield - South SA2.

Other schools in Ashfield - South

Ashfield Public SchoolState · Primary Yeo Park Infants SchoolState · Primary Ashfield Boys High SchoolState · Secondary Canterbury Boys High SchoolState · Secondary Trinity Grammar School Bishop Chambers HouseNon-Government · Secondary

School list: NSW Government open data — ACARA Schools NSW, via the NSW data portal, CC BY 4.0. Catchments: NSW Department of Education “School intake zones” dataset, CC BY 4.0. ICSEA & student background: ACARA School Profile 2025. NAPLAN: myschool.edu.au (ACARA).