Government · Secondary · Sefton
Sefton High School
Sefton High School is a government secondary school in Sefton, New South Wales, teaching year levels 7-12 to 1,121 students.
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ICSEA reflects the socio-educational background of students at this school - it is an intake measure, not a teaching quality or outcomes ranking. National average is 1000. Range is roughly 500–1300. This school's ICSEA places it above 61% of Australian schools.
Sefton High School had 1,121 students in 2025, compared with 1,045 in 2016 (up 7%).
Total enrolments as reported to ACARA each August. A year marked "-" was not published for this school. Enrolment counts how many students attend, not how good a school is. Source: ACARA School Profile 2008-2025 (Data Access Program).
Comparing suburbs near Sefton?
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Open Move Planner → Sefton Get a one-page family report for Chester Hill - Sefton →Catchment zone shown where matched to official NSW government data.
Map: © OpenStreetMap contributors. School pin is approximate (ACARA geocoded location).
View all New South Wales schools on the map →Sefton High School catchment: suburbs in the zone
The official zone for Sefton High School overlaps 2 suburbs. The zone sets the addresses this school is the designated local government school for.
Sefton, Chester Hill
Suburbs (ABS gazetted localities) that overlap this school's zone. Boundaries do not line up exactly, so a suburb listed here may be only partly inside it. Confirm eligibility with the official NSW zone finder before relying on an address. Zone data: NSW Department of Education, school intake zones, 2026.
Is my address in the Sefton High School zone?
Type a street address. We check it against the official zone map and tell you whether it is in the Sefton High School zone, and which government primary and secondary zones it is in.
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The suburb: Chester Hill - Sefton
Figures are for the Chester Hill - Sefton statistical area (SA2), which contains the school. SA2 boundaries do not always equal suburb boundaries, and childcare services are matched by suburb name. See the full Chester Hill - Sefton profile →
© State of New South Wales (Department of Communities and Justice), licensed under CC BY 4.0 (copyright notice).
Nearest schools to Sefton High School
Listed nearest first. Distance is a straight line between ACARA school locations, not travel distance, and the order is not a ranking.
To see where Sefton High School sits among other suburbs, open the map of New South Wales suburbs.
Questions about Sefton High School
How many students go to Sefton High School?
Sefton High School has 1,121 students enrolled (580 boys and 541 girls), according to the ACARA School Profile 2025.
What year levels does Sefton High School teach?
Sefton High School teaches year levels 7-12. ACARA lists it as a secondary school.
Is Sefton High School a government or non-government school?
Sefton High School is a government school in Sefton, New South Wales.
What does the ICSEA of 1033 at Sefton High School mean?
ICSEA, the Index of Community Socio-Educational Advantage, describes the family background of the students enrolled at a school, such as parents' education and occupation. The national average is 1000. Sefton High School has an ICSEA of 1033, which places it above 61% of Australian schools. It measures student intake, not teaching quality or results.
Which suburbs are in the Sefton High School catchment?
The official zone for Sefton High School overlaps 2 suburbs: Sefton, Chester Hill. A suburb can be only partly inside the zone, so confirm an address with the official NSW zone finder. Zone data: NSW Department of Education, school intake zones, 2026.
How many childcare services are near Sefton High School?
22 childcare services are listed on the ACECQA national register for Chester Hill - Sefton, the statistical area around the school. Services are matched by suburb name.
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Source: ACARA School Profile & School Location 2025 (Data Access Program). VIC, NSW and QLD government catchment zones from DET School Zones 2027, NSW DoE School Intake Zones 2026 and Queensland Department of Education state school catchments 2026 (CC BY 4.0). ICSEA is a socio-educational intake index - it measures student background, not teaching quality or outcomes. Methodology →