Killara High School
Updated Oct 2026 · ACARA 2025Killara, New South Wales 2071 · Ku-ring-gai LGA
About Killara High School
Killara High School is a public high school located in Killara, New South Wales (2071), within the Ku-ring-gai local government area. It caters for students from 7 to 12 and in 2025 enrolled 1,803 students (751 girls and 1,052 boys).
Killara High School has an ICSEA value of 1147, indicating very high socio-educational advantage. That places it in the 95th percentile of Australian schools. 60% of students come from the top socio-educational quarter and 2% from the bottom quarter.
The school employs 103 teachers (119.6 full-time equivalent) and 31 non-teaching staff, giving a student-to-teacher ratio of about 15.1 to 1. Enrolments have grown by 8% over the past five years.
On the Success Index, Killara High School scores 75.2 out of 100, placing it in the top 25% of secondary schools nationally and 59th of 539 secondary schools in NSW (4th of 5 in the Ku-ring-gai area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1147
- Students in the top advantage quarter (15%)60% of students
- Teacher resourcing (students per teacher) (15%)15.1 students per teacher
- Enrolment growth vs local area (5 years) (10%)+8% enrolments since 2020 (area median -7%)
- ICSEA trend (5 years) (10%)-6 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 Killara High School's 1,803 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Killara High School have changed over the past decade.
Free academic assessment
Is your child on track at Killara High School?
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Schools near Killara High School
Closest schools by straight-line distance, with their Success Index.
Lindfield East Public School
East Lindfield · Government primary · K-6
531 students · ICSEA 1167 · 1.5 km away
Ravenswood School for Girls
Gordon · Independent combined · K-12
1,451 students · ICSEA 1185 · 1.7 km away
St Ives High School
St Ives · Government high school · 6-12
1,756 students · ICSEA 1125 · 1.9 km away
Cromehurst School
Lindfield · Government special · U
60 students · ICSEA 1098 · 1.9 km away
Gordon East Public School
Gordon · Government primary · K-6
195 students · ICSEA 1163 · 2.0 km away
Holy Family Catholic Primary School
Lindfield · Catholic primary · K-6
259 students · ICSEA 1168 · 2.0 km away
St Ives Public School
St Ives · Government primary · K-6
465 students · ICSEA 1155 · 2.1 km away
Highfields Preparatory and Kindergarten School
Lindfield · Independent primary · K-2
98 students · ICSEA 1164 · 2.3 km away
Killara Public School
Killara · Government primary · K-6
273 students · ICSEA 1148 · 2.6 km away
Kambora Public School
Davidson · Government primary · K-6
32 students · ICSEA 1101 · 2.6 km away
Similar schools
Government secondary schools in NSW with a comparable ICSEA.
Hurlstone Agricultural High School
Glenfield · Government high school · 7-12
934 students · ICSEA 1147
St George Girls High School
Kogarah · Government high school · 7-12
908 students · ICSEA 1148
Cherrybrook Technology High School
Cherrybrook · Government high school · 7-12
2,098 students · ICSEA 1146
Willoughby Girls High School
Willoughby · Government high school · 7-12
1,036 students · ICSEA 1152
Cheltenham Girls High School
Beecroft · Government high school · 7-12
1,436 students · ICSEA 1142
Chatswood High School
Chatswood · Government high school · 7-12
2,147 students · ICSEA 1137
Frequently asked questions
Is Killara High School a public or private school?
Killara High School is a public (government) school run by the New South Wales education department.
What year levels does Killara High School offer?
Killara High School offers 7 to 12. It is classified by ACARA as a secondary school.
How many students attend Killara High School?
In 2025, Killara High School had 1,803 enrolled students (751 girls, 1,052 boys), a change of 8% over five years.
What is the ICSEA of Killara High School?
Killara High School has an ICSEA (Index of Community Socio-Educational Advantage) of 1147. The national average is 1000, so this indicates very high socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does Killara High School rank in NSW?
Killara High School ranks 59th of 539 secondary schools in New South Wales on the Success Index (75.2/100), and 165th of 1,472 nationally.
What is the student-to-teacher ratio at Killara High School?
Killara High School has about 15.1 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Killara High School?
In 2025, Killara High School had 349 students in Year 7 and 278 in Year 12.
Is Killara High School co-ed?
Yes. Killara High School is a co-educational school enrolling both girls and boys.
What other schools are near Killara High School?
There are 10 other schools within 15 km of Killara 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 Killara High School?
The closest Success Tutoring centre is Success Tutoring Gordon, about 1.7 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.