Non-Government school · Combined

Knox Grammar School

Wahroonga, 2076 — in Wahroonga (East) - Warrawee

SectorSchools

Non-Government

Combined school

NSW school data

Year levels

—

official range

NSW school data

ICSEA

1187

national average is 1000

ACARA 2025

Suburb

Wahroonga (East) - Warrawee

SA2 this campus sits in

ABS boundary

School information

Knox Grammar School is a non-government combined primary–secondary school in Wahroonga (East) - Warrawee, Sydney. It had 3,345 students, per NSW school data. Its ICSEA is 1187, above the national average of 1000 (99th percentile nationally). NAPLAN results for Knox 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.

1187ICSEA — 187 points above the national average of 1000, higher than 99% of Australian schools

+187

820national average · 10001180

vs avg

Socio-educational advantage

Bottom quarter 1%Lower-middle quarter 4%Upper-middle quarter 18%Top quarter 77%

18%77%

All Australian students — 25% in each quarter

Who’s enrolled

3,345students in 2025

Girls and boys

Girls 73 · 2%
Boys 3,272 · 98%

Language background

Language other than English 53%
English only 25%
Not stated 22%

Aboriginal or Torres Strait Islander

1% of enrolment

Knox Grammar School has an ICSEA of 1187, above the national average of 1000 and higher than 99% of Australian schools. 77% 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 3,345 students in 2025 (73 girls, 3,272 boys), 1% Aboriginal or Torres Strait Islander and 53% with a language background other than English.

Show the data table

Knox Grammar School — student background, ACARA School Profile 2025
Measure	Value
ICSEA	1187
ICSEA vs national average (1000)	+187
ICSEA percentile	99
Bottom quarter of advantage	1%
Lower-middle quarter of advantage	4%
Upper-middle quarter of advantage	18%
Top quarter of advantage	77%
Total enrolment	3,345
Girls	73 (2%)
Boys	3,272 (98%)
Language other than English	53%
English only	25%
Not stated	22%
Aboriginal or Torres Strait Islander	1%

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

School details

Sector: Non-Government school
Type: Combined
Enrolment: 3,345 students
ICSEA: 1187 · 99th percentile
Address: Wahroonga 2076

Knox Grammar School: common questions

Is Knox Grammar School a public or private school?

Knox Grammar School is a non-government (non-government) combined primary–secondary school in Wahroonga (East) - Warrawee, Sydney.

How many students go to Knox Grammar School?

Knox Grammar School had 3,345 students enrolled, per NSW school data.

What is Knox Grammar School's ICSEA?

Knox Grammar School has an ICSEA of 1187, above the national average of 1000 (99th percentile nationally), per the ACARA School Profile 2025. ICSEA reflects the socio-educational background of a school's students, not its results.

Where is Knox Grammar School located?

Knox Grammar School is at Wahroonga 2076, in the Wahroonga (East) - Warrawee SA2.

Other schools in Wahroonga (East) - Warrawee

AbbotsleighNon-Government · Combined Wahroonga Adventist SchoolNon-Government · Combined Abbotsleigh Junior SchoolNon-Government · Primary Knox Grammar Preparatory SchoolNon-Government · Primary Knox Grammar School - Wahroonga Preparatory CampusNon-Government · Primary Prouille Catholic Primary SchoolNon-Government · Primary Wahroonga Public SchoolState · Primary Warrawee Public SchoolState · Primary St Edmund's CollegeNon-Government · Special St Lucy's SchoolNon-Government · Special St Lucy's, Prouille Catholic Primary campusNon-Government · Special

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).