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Independent School

Great Southern Grammar School

Combined school in Kalgan, WA

611
Students (2025)
1080
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.
11:1
Student:Teacher
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About Great Southern Grammar School

Great Southern Grammar School is a independent combined school located in Kalgan, Western Australia. The school offers education for students from PP-12.

With 611 students enrolled in 2025 and an ICSEA score of 1080 (78th percentile), the school serves a community with above-average socio-educational advantage. The student-to-teacher ratio of 11:1 supports quality learning outcomes.

📍 Contact & Location

🎓 School Details

  • Type Independent
  • Level Combined (PP-12)
  • Gender Co-educational
  • Students (2025) 611 enrolled
  • Teaching Staff 62 (54.7 FTE)
  • Non-Teaching Staff 59 (40 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. 1080 (78th percentile)
  • Indigenous Students 3%

📊 Student Demographics

Gender
Boys: 267 (44%)
Girls: 344 (56%)
Language Background
LBOTE: 6%?Language Background Other Than English – students who speak a language other than English at home.
English only: 94%
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.
10%
25%
30%
35%
Bottom 10% Lower 25% Upper 30% Top 35%