Sylvania High School
Updated Oct 2026 · ACARA 2025Sylvania, New South Wales 2224 · Sutherland LGA
About Sylvania High School
Sylvania High School is a public high school located in Sylvania, New South Wales (2224), within the Sutherland local government area. It caters for students from 7 to 12 and in 2025 enrolled 750 students (348 girls and 402 boys).
Sylvania High School has an ICSEA value of 1039, indicating a socio-educational profile close to the national average of 1000. That places it in the 64th percentile of Australian schools. 18% of students come from the top socio-educational quarter and 19% from the bottom quarter.
The school employs 53 teachers (60.0 full-time equivalent) and 19 non-teaching staff, giving a student-to-teacher ratio of about 12.5 to 1. Enrolments have fallen by 6% over the past five years.
On the Success Index, Sylvania High School scores 59.9 out of 100, placing it in the top 50% of secondary schools nationally and 208th of 539 secondary schools in NSW (14th of 18 in the Sutherland area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1039
- Students in the top advantage quarter (15%)18% of students
- Teacher resourcing (students per teacher) (15%)12.5 students per teacher
- Enrolment growth vs local area (5 years) (10%)-6% enrolments since 2020 (area median -3%)
- ICSEA trend (5 years) (10%)+8 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 Sylvania High School's 750 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Sylvania High School have changed over the past decade.
Free academic assessment
Is your child on track at Sylvania High School?
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Schools near Sylvania High School
Closest schools by straight-line distance, with their Success Index.
Sylvania Heights Public School
Sylvania · Government primary · K-6
482 students · ICSEA 1056 · 769 m away
Sylvania Public School
Sylvania · Government primary · K-6
167 students · ICSEA 1038 · 1.3 km away
Our Lady Star of the Sea Catholic Primary School Miranda
Miranda · Catholic primary · K-6
396 students · ICSEA 1090 · 1.7 km away
Gymea North Public School
Gymea · Government primary · K-6
362 students · ICSEA 1075 · 1.7 km away
Port Hacking High School
Miranda · Government high school · 7-12
950 students · ICSEA 1050 · 1.8 km away
Taren Point Public School
Taren Point · Government primary · K-6
114 students · ICSEA 1043 · 1.8 km away
Bates Drive School
Kareela · Government special · U
62 students · ICSEA 1018 · 1.8 km away
Miranda North Public School
Miranda · Government primary · K-6
291 students · ICSEA 1046 · 1.8 km away
Miranda Public School
Miranda · Government primary · K-6
300 students · ICSEA 1024 · 2.0 km away
Kareela Public School
Kareela · Government primary · K-6
272 students · ICSEA 1102 · 2.0 km away
Similar schools
Government secondary schools in NSW with a comparable ICSEA.
Coffs Harbour Senior College
Coffs Harbour · Government high school · 11-12
454 students · ICSEA 1038
Endeavour Sports High School
Caringbah · Government high school · 7-12
1,381 students · ICSEA 1040
Georges River College Penshurst Campus
Penshurst · Government high school · 7-10
488 students · ICSEA 1038
Winmalee High School
Winmalee · Government high school · 7-12
698 students · ICSEA 1040
Central Sydney Intensive English High School
Alexandria · Government high school · 7-11
142 students · ICSEA 1037
South Sydney High School
Maroubra · Government high school · 7-12
796 students · ICSEA 1037
Frequently asked questions
Is Sylvania High School a public or private school?
Sylvania High School is a public (government) school run by the New South Wales education department.
What year levels does Sylvania High School offer?
Sylvania High School offers 7 to 12. It is classified by ACARA as a secondary school.
How many students attend Sylvania High School?
In 2025, Sylvania High School had 750 enrolled students (348 girls, 402 boys), a change of -6% over five years.
What is the ICSEA of Sylvania High School?
Sylvania High School has an ICSEA (Index of Community Socio-Educational Advantage) of 1039. The national average is 1000, so this indicates a socio-educational profile close to the national average of 1000. ICSEA reflects the school community, not teaching quality.
How does Sylvania High School rank in NSW?
Sylvania High School ranks 208th of 539 secondary schools in New South Wales on the Success Index (59.9/100), and 519th of 1,472 nationally.
What is the student-to-teacher ratio at Sylvania High School?
Sylvania High School has about 12.5 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Sylvania High School?
In 2025, Sylvania High School had 153 students in Year 7 and 83 in Year 12.
Is Sylvania High School co-ed?
Yes. Sylvania High School is a co-educational school enrolling both girls and boys.
What other schools are near Sylvania High School?
There are 10 other schools within 15 km of Sylvania High 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 Sylvania High School?
The closest Success Tutoring centre is Success Tutoring Hurstville, about 5.8 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.