Sydney Grammar School
Updated Oct 2026 · ACARA 2025Darlinghurst, New South Wales 2010 · Sydney LGA
About Sydney Grammar School
Sydney Grammar School is an independent boys' combined (K–12) school located in Darlinghurst, New South Wales (2010), within the Sydney local government area. It caters for students from K to 12 and in 2025 enrolled 1,925 students. The school is affiliated with Independent Schools NSW.
Sydney Grammar School has an ICSEA value of 1274, indicating exceptionally high socio-educational advantage, among the most advantaged school communities in Australia. That places it in the 99th percentile of Australian schools. 93% of students come from the top socio-educational quarter and 0% from the bottom quarter.
The school employs 265 teachers (209.9 full-time equivalent) and 110 non-teaching staff, giving a student-to-teacher ratio of about 9.2 to 1. Enrolments have remained steady over the past five years.
On the Success Index, Sydney Grammar School scores 83.8 out of 100, placing it in the top 5% of combined schools nationally and 17th of 314 combined schools in NSW (3rd of 6 in the Sydney area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1274
- Students in the top advantage quarter (15%)93% of students
- Teacher resourcing (students per teacher) (15%)9.2 students per teacher
- Enrolment growth vs local area (5 years) (10%)+2% enrolments since 2020 (area median +5%)
- ICSEA trend (5 years) (10%)-4 ICSEA points since 2020
The Success Index summarises the academic environment of a school community using official ACARA data. It is not a measure of teaching quality or student results. Read the methodology.
Student profile
Distribution of students across socio-educational advantage (SEA) quarters, plus community characteristics.
Enrolments by year level
How Sydney Grammar School's 1,925 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Sydney Grammar School have changed over the past decade.
Free academic assessment
Is your child on track at Sydney Grammar School?
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Schools near Sydney Grammar School
Closest schools by straight-line distance, with their Success Index.
St Mary's Cathedral College
Sydney · Catholic combined · K-12
937 students · ICSEA 1125 · 415 m away
SCEGGS Darlinghurst
Darlinghurst · Independent combined · K-12
936 students · ICSEA 1209 · 509 m away
Australian International High School
Sydney · Independent high school
· ICSEA 1028 · 630 m away
St Andrew's Cathedral School
Sydney · Independent combined · K-12
1,436 students · ICSEA 1189 · 727 m away
St Andrew's Cathedral Gawura School
Sydney · Independent primary · K-6
38 students · ICSEA 817 · 735 m away
Plunkett Street Public School
Woolloomooloo · Government primary · P-6
73 students · ICSEA 968 · 788 m away
Crown Street Public School
Surry Hills · Government primary · K-6
288 students · ICSEA 1114 · 829 m away
Sydney Distance Education High School
Woolloomooloo · Government high school · 7-12
615 students · ICSEA 1032 · 834 m away
Macquarie Grammar School
Sydney · Independent high school · 7-12
84 students · ICSEA 1027 · 884 m away
Darlinghurst Public School
Potts Point · Government primary · K-6
210 students · ICSEA 1156 · 1.0 km away
Similar schools
Independent combined schools in NSW with a comparable ICSEA.
St Aloysius' College
Kirribilli · Independent combined · 3-12
1,347 students · ICSEA 1223
Abbotsleigh
Wahroonga · Independent combined · K-12
1,634 students · ICSEA 1217
Ascham School
Edgecliff · Independent combined · K-12
1,182 students · ICSEA 1217
SCEGGS Darlinghurst
Darlinghurst · Independent combined · K-12
936 students · ICSEA 1209
SHORE - Sydney Church of England Grammar School
North Sydney · Independent combined · K-12
1,724 students · ICSEA 1205
Reddam House
Woollahra · Independent combined
· ICSEA 1203
Frequently asked questions
Is Sydney Grammar School a public or private school?
Sydney Grammar School is a Independent school, which makes it a non-government (private) school affiliated with Independent Schools NSW.
What year levels does Sydney Grammar School offer?
Sydney Grammar School offers K to 12. It is classified by ACARA as a combined school.
How many students attend Sydney Grammar School?
In 2025, Sydney Grammar School had 1,925 enrolled students (0 girls, 1,925 boys), a change of 2% over five years.
What is the ICSEA of Sydney Grammar School?
Sydney Grammar School has an ICSEA (Index of Community Socio-Educational Advantage) of 1274. The national average is 1000, so this indicates exceptionally high socio-educational advantage, among the most advantaged school communities in Australia. ICSEA reflects the school community, not teaching quality.
How does Sydney Grammar School rank in NSW?
Sydney Grammar School ranks 17th of 314 combined schools in New South Wales on the Success Index (83.8/100), and 54th of 1,259 nationally.
What is the student-to-teacher ratio at Sydney Grammar School?
Sydney Grammar School has about 9.2 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Sydney Grammar School?
In 2025, Sydney Grammar School had 200 students in Year 7 and 199 in Year 12.
Is Sydney Grammar School co-ed?
No. Sydney Grammar School is a boys' school.
What other schools are near Sydney Grammar School?
There are 10 other schools within 15 km of Sydney Grammar School in our database. Scroll up to the "Nearby schools" section to compare them by Success Index, ICSEA and enrolments, or use the Compare tool.
Where can I get tutoring near Sydney Grammar School?
The closest Success Tutoring centre is Success Tutoring Lane Cove, about 8.0 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.