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Catholic School

St Mary's Cathedral College

Combined school in Sydney, NSW

937
Students (2025)
1125
ICSEA?Index of Community Socio-Educational Advantage – measures the socio-educational background of students. Based on parents' occupation, education, and school location. National average is 1000.
13:1
Student:Teacher
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About St Mary's Cathedral College

St Mary's Cathedral College is a catholic combined school located in Sydney, Sydney's North Shore. The school provides Catholic education within a caring community environment for students from K-12.

With 937 students enrolled in 2025 and an ICSEA score of 1125 (90th percentile), the school serves a community with above-average socio-educational advantage. The student-to-teacher ratio of 13:1 supports quality learning outcomes.

📍 Contact & Location

🎓 School Details

  • Type Catholic
  • Level Combined (K-12)
  • Gender Co-educational
  • Students (2025) 937 enrolled
  • Teaching Staff 75 (72.3 FTE)
  • Non-Teaching Staff 24 (17.5 FTE)
  • ICSEA?Index of Community Socio-Educational Advantage – measures the socio-educational background of students. Based on parents' occupation, education, and school location. National average is 1000. 1125 (90th percentile)
  • Indigenous Students 1%

📊 Student Demographics

Gender
Boys: 810 (86%)
Girls: 127 (14%)
Language Background
LBOTE: 61%?Language Background Other Than English – students who speak a language other than English at home.
English only: 39%
ICSEA Distribution?Index of Community Socio-Educational Advantage – shows the distribution of students across socio-educational quarters. Based on parents' occupation, education, and school location. National average is 1000.
15%
32%
49%
Bottom 4% Lower 15% Upper 32% Top 49%