Non-Government school · Combined

Northholm Grammar School

Arcadia, 2159 — in Galston - Laughtondale

SectorSchools

Non-Government

Combined school

NSW school data

Year levels

—

official range

NSW school data

ICSEA

1137

national average is 1000

ACARA 2025

Suburb

Galston - Laughtondale

SA2 this campus sits in

ABS boundary

School information

Northholm Grammar School is a non-government combined primary–secondary school in Galston - Laughtondale, Sydney. It had 698 students, per NSW school data. Its ICSEA is 1137, above the national average of 1000 (93rd percentile nationally). NAPLAN results for Northholm 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.

1137ICSEA — 137 points above the national average of 1000, higher than 93% of Australian schools

+137

820national average · 10001180

vs avg

Socio-educational advantage

Bottom quarter 3%Lower-middle quarter 14%Upper-middle quarter 27%Top quarter 56%

14%27%56%

All Australian students — 25% in each quarter

Who’s enrolled

698students in 2025

Girls and boys

Girls 303 · 43%
Boys 395 · 57%

Language background

Language other than English 29%
English only 71%
Not stated 0%

Aboriginal or Torres Strait Islander

0% of enrolment

Northholm Grammar School has an ICSEA of 1137, above the national average of 1000 and higher than 93% of Australian schools. 56% of its students are in the top quarter of socio-educational advantage and 3% in the bottom quarter, against 25% in each quarter across all Australian schools. It enrolled 698 students in 2025 (303 girls, 395 boys), 0% Aboriginal or Torres Strait Islander and 29% with a language background other than English.

Show the data table

Northholm Grammar School — student background, ACARA School Profile 2025
Measure	Value
ICSEA	1137
ICSEA vs national average (1000)	+137
ICSEA percentile	93
Bottom quarter of advantage	3%
Lower-middle quarter of advantage	14%
Upper-middle quarter of advantage	27%
Top quarter of advantage	56%
Total enrolment	698
Girls	303 (43%)
Boys	395 (57%)
Language other than English	29%
English only	71%
Not stated	0%
Aboriginal or Torres Strait Islander	0%

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

School details

Sector: Non-Government school
Type: Combined
Enrolment: 698 students
ICSEA: 1137 · 93rd percentile
Address: Arcadia 2159

Northholm Grammar School: common questions

Is Northholm Grammar School a public or private school?

Northholm Grammar School is a non-government (non-government) combined primary–secondary school in Galston - Laughtondale, Sydney.

How many students go to Northholm Grammar School?

Northholm Grammar School had 698 students enrolled, per NSW school data.

What is Northholm Grammar School's ICSEA?

Northholm Grammar School has an ICSEA of 1137, above the national average of 1000 (93rd percentile nationally), per the ACARA School Profile 2025. ICSEA reflects the socio-educational background of a school's students, not its results.

Where is Northholm Grammar School located?

Northholm Grammar School is at Arcadia 2159, in the Galston - Laughtondale SA2.

Other schools in Galston - Laughtondale

Arcadia Public SchoolState · Primary Galston Public SchoolState · Primary Galston High SchoolState · 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).