Non-Government school · Combined

International Grammar School

Ultimo, 2007 — in Ultimo

SectorSchools

Non-Government

Combined school

NSW school data

Year levels

—

official range

NSW school data

ICSEA

1170

national average is 1000

ACARA 2025

Suburb

Ultimo

SA2 this campus sits in

ABS boundary

School information

International Grammar School is a non-government combined primary–secondary school in Ultimo, Sydney. It had 1,224 students, per NSW school data. Its ICSEA is 1170, above the national average of 1000 (98th percentile nationally). NAPLAN results for International 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.

1170ICSEA — 170 points above the national average of 1000, higher than 98% of Australian schools

+170

820national average · 10001180

vs avg

Socio-educational advantage

Bottom quarter 2%Lower-middle quarter 6%Upper-middle quarter 21%Top quarter 71%

21%71%

All Australian students — 25% in each quarter

Who’s enrolled

1,224students in 2025

Girls and boys

Girls 527 · 43%
Boys 697 · 57%

Language background

Language other than English 26%
English only 74%
Not stated 0%

Aboriginal or Torres Strait Islander

2% of enrolment

International Grammar School has an ICSEA of 1170, above the national average of 1000 and higher than 98% of Australian schools. 71% of its students are in the top quarter of socio-educational advantage and 2% in the bottom quarter, against 25% in each quarter across all Australian schools. It enrolled 1,224 students in 2025 (527 girls, 697 boys), 2% Aboriginal or Torres Strait Islander and 26% with a language background other than English.

Show the data table

International Grammar School — student background, ACARA School Profile 2025
Measure	Value
ICSEA	1170
ICSEA vs national average (1000)	+170
ICSEA percentile	98
Bottom quarter of advantage	2%
Lower-middle quarter of advantage	6%
Upper-middle quarter of advantage	21%
Top quarter of advantage	71%
Total enrolment	1,224
Girls	527 (43%)
Boys	697 (57%)
Language other than English	26%
English only	74%
Not stated	0%
Aboriginal or Torres Strait Islander	2%

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

School details

Sector: Non-Government school
Type: Combined
Enrolment: 1,224 students
ICSEA: 1170 · 98th percentile
Address: Ultimo 2007

International Grammar School: common questions

Is International Grammar School a public or private school?

International Grammar School is a non-government (non-government) combined primary–secondary school in Ultimo, Sydney.

How many students go to International Grammar School?

International Grammar School had 1,224 students enrolled, per NSW school data.

What is International Grammar School's ICSEA?

International Grammar School has an ICSEA of 1170, 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 International Grammar School located?

International Grammar School is at Ultimo 2007.

Other schools in Ultimo

Ultimo Public SchoolState · Primary Westbourne College SydneyNon-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).