Sefton High School
Updated Oct 2026 · ACARA 2025Sefton, New South Wales 2162 · Canterbury-Bankstown LGA
About Sefton High School
Sefton High School is a public high school located in Sefton, New South Wales (2162), within the Canterbury-Bankstown local government area. It caters for students from 7 to 12 and in 2025 enrolled 1,121 students (541 girls and 580 boys).
Sefton High School has an ICSEA value of 1033, indicating a socio-educational profile close to the national average of 1000. That places it in the 61st percentile of Australian schools. 21% of students come from the top socio-educational quarter and 29% from the bottom quarter.
The school employs 72 teachers (76.0 full-time equivalent) and 14 non-teaching staff, giving a student-to-teacher ratio of about 14.8 to 1. Enrolments have grown by 5% over the past five years.
On the Success Index, Sefton High School scores 57.2 out of 100, placing it in the top 50% of secondary schools nationally and 226th of 539 secondary schools in NSW (5th of 21 in the Canterbury-Bankstown area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1033
- Students in the top advantage quarter (15%)21% of students
- Teacher resourcing (students per teacher) (15%)14.8 students per teacher
- Enrolment growth vs local area (5 years) (10%)+5% enrolments since 2020 (area median +0%)
- ICSEA trend (5 years) (10%)+5 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 Sefton High School's 1,121 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Sefton High School have changed over the past decade.
Free academic assessment
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Schools near Sefton High School
Closest schools by straight-line distance, with their Success Index.
Salamah College
Chester Hill · Independent combined · K-12
1,353 students · ICSEA 989 · 466 m away
Immaculate Heart of Mary Catholic Primary School
Sefton · Catholic primary · K-6
337 students · ICSEA 1046 · 814 m away
Chester Hill Public School
Chester Hill · Government primary · K-6
578 students · ICSEA 958 · 946 m away
Chester Hill North Public School
Chester Hill · Government primary · K-6
400 students · ICSEA 950 · 1.1 km away
Sefton Infants School
Sefton · Government primary · P-2
93 students · ICSEA 1027 · 1.1 km away
Chester Hill High School
Chester Hill · Government high school · 7-12
1,056 students · ICSEA 912 · 1.2 km away
Karningul School
Regents Park · Government special · U
20 students · ICSEA 919 · 1.5 km away
Regents Park Public School
Regents Park · Government primary · K-6
268 students · ICSEA 968 · 1.6 km away
Regents Park Christian School
Regents Park · Independent combined · K-12
731 students · ICSEA 1039 · 1.7 km away
St Peter Chanel Catholic Primary School
Regents Park · Catholic primary · K-6
383 students · ICSEA 1048 · 1.7 km away
Similar schools
Government secondary schools in NSW with a comparable ICSEA.
Sydney Distance Education High School
Woolloomooloo · Government high school · 7-12
615 students · ICSEA 1032
Katoomba High School
Katoomba · Government high school · 7-12
862 students · ICSEA 1034
East Hills Girls Technology High School
Panania · Government high school · 7-12
759 students · ICSEA 1031
Henry Kendall High School
Gosford · Government high school · 7-12
789 students · ICSEA 1030
Kiama High School
Kiama · Government high school · 7-12
761 students · ICSEA 1036
Woonona High School
Woonona · Government high school · 7-12
767 students · ICSEA 1030
Frequently asked questions
Is Sefton High School a public or private school?
Sefton High School is a public (government) school run by the New South Wales education department.
What year levels does Sefton High School offer?
Sefton High School offers 7 to 12. It is classified by ACARA as a secondary school.
How many students attend Sefton High School?
In 2025, Sefton High School had 1,121 enrolled students (541 girls, 580 boys), a change of 5% over five years.
What is the ICSEA of Sefton High School?
Sefton High School has an ICSEA (Index of Community Socio-Educational Advantage) of 1033. 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 Sefton High School rank in NSW?
Sefton High School ranks 226th of 539 secondary schools in New South Wales on the Success Index (57.2/100), and 579th of 1,472 nationally.
What is the student-to-teacher ratio at Sefton High School?
Sefton High School has about 14.8 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Sefton High School?
In 2025, Sefton High School had 183 students in Year 7 and 180 in Year 12.
Is Sefton High School co-ed?
Yes. Sefton High School is a co-educational school enrolling both girls and boys.
What other schools are near Sefton High School?
There are 10 other schools within 15 km of Sefton 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 Sefton High School?
The closest Success Tutoring centre is Success Tutoring Auburn, about 3.9 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.