12 schools most similar to Sefton High School in NSW, based on socio-educational profile, enrolment size, sector, and school type.
Similarity is calculated using ICSEA score (weighted ×3), enrolment size (×2), sector match (×2), and school type (×1.5). Higher match % means a more comparable school.
99%
Newcastle High School
Government Secondary Hamilton, NSW
1,072 students
1027 ICSEA
11.3:1 ratio
98%
Katoomba High School
Government Secondary Katoomba, NSW
862 students
1034 ICSEA
10.9:1 ratio
98%
Endeavour Sports High School
Government Secondary Caringbah, NSW
1,381 students
1040 ICSEA
14.3:1 ratio
97%
East Hills Girls Technology High School
Government Secondary Panania, NSW
759 students
1031 ICSEA
13.2:1 ratio
97%
Henry Kendall High School
Government Secondary Gosford, NSW
789 students
1030 ICSEA
12.4:1 ratio
97%
Kiama High School
Government Secondary Kiama, NSW
761 students
1036 ICSEA
12.2:1 ratio
97%
Woonona High School
Government Secondary Woonona, NSW
767 students
1030 ICSEA
12.8:1 ratio
97%
South Sydney High School
Government Secondary Maroubra, NSW
796 students
1037 ICSEA
13.6:1 ratio
96%
Sylvania High School
Government Secondary Sylvania, NSW
750 students
1039 ICSEA
12.5:1 ratio
95%
Sydney Distance Education High School
Government Secondary Woolloomooloo, NSW
615 students
1032 ICSEA
3.4:1 ratio
95%
Heathcote High School
Government Secondary Heathcote, NSW
633 students
1028 ICSEA
11.4:1 ratio
95%
Winmalee High School
Government Secondary Winmalee, NSW
698 students
1040 ICSEA
12.8:1 ratio
Similarity calculated from ACARA School Profile (2025) data.
ICSEA 1033 1027
Enrolments 1,121 1,072
Sector Government Government
Type Secondary Secondary
Year Range 7-12 7-12
Student:Teacher 14.8:1 11.3:1
Location Sefton, NSW Hamilton, NSW
Compare Sefton High School side-by-side with its closest matches on enrolments, ICSEA, staffing, and more.
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