Sefton High is a co-ed government secondary school offering both academic rigour and practical pathways.
NAPLAN averaging 46 points above national year-level averages; the result is a B+ overall.
Sefton High is a co-ed government secondary school offering both academic rigour and practical pathways. Its partially selective HPGE stream serves students seeking an intensive academic environment, while VET courses support those heading toward trades and vocational careers. A strong pastoral foundation and dedicated wellbeing teams underpin the structured, traditional culture. The school is known for robust careers guidance and sports programs, with comprehensive learning support available across both streams. Sefton suits families wanting clear pathways, strong pastoral care, and a balance between academic and vocational options.
Sefton High School is also known as Sefton HS and SHS Sefton.
Sefton High School draws students from the Sefton HS (and 1 more zone).
Sefton High School has an overall SchoolRank score of 63.2/100, rated "Good". This score is calculated from academic results, student growth, wellbeing, programs, and value for money. Academically, the school grades A− (Excellent) against other Australian schools. The school's ICSEA (Index of Community Socio-Educational Advantage) is 1033 (61st percentile; the national average is 1,000).
In 2025 NAPLAN testing at Sefton High School, Year 7 students averaged 590 across the tested NAPLAN domains, well above the national average of 540 for that year level, and Year 9 students averaged 611, well above the national average of 569 for that year level. Relative to national year-level averages, the school's strongest domain is Numeracy. National averages are specific to each year level, because NAPLAN scores are scaled so older year levels score higher. A school-wide average can't be compared with a single national figure.
Sefton High School is a large government secondary school with approximately 1,121 students. It offers education for years 7-12. As a government school, enrolment is generally available to students living within the school's designated catchment zone. Families outside the zone may apply for out-of-area placement subject to availability. The school also runs an academically selective stream with test-based entry alongside its local intake.
Partially. Sefton High School runs an academically selective stream with test-based entry alongside its regular local intake. Entry is through the Selective High School Placement Test. The main entry point is Year 7. Applications go through the official state process, and entry cutoff marks are not published.
Sefton High School is a government school, so there are no tuition fees. Families may be asked to contribute to voluntary school fees covering materials, excursions, and activities. The school grades A− (Excellent) for value for money, which weighs academic results against the cost of attendance.
Sefton High School has a student-to-teacher ratio of 14.8:1. This is around the national average of approximately 14:1, meaning class sizes are typical for Australian schools. Support staff make up 16% of the workforce, providing additional learning assistance and pastoral care. The student attendance rate is 89%, which is good.
In the 2025 HSC, 4 students at Sefton High School were all-round achievers, with results in the top band across 10 or more units. The Year 12 completion rate is 96%.
Sefton High School is located in Sefton, NSW, in a major city. Its ICSEA is 1033 (61st percentile; the national average is 1,000). ICSEA measures the advantage of a school's community, from its parents' education and occupation, not the school's quality. A school with a lower ICSEA and strong academic results may be teaching particularly effectively.