Great Southern Grammar School

Key Indicators

How this school compares to national averages

Nat. avg: 1,000

1080+80

ICSEA Score

Nat. avg: 434

611

Total Enrolments

Nat. avg: 12.3

11.2:1-1.1

Student : Teacher

Nat. avg: 26.9%

LBOTE

Nat. avg: 11.7%

Indigenous Students

Higher = less disadvantaged

4 / 10

SEIFA IRSD Decile

Nat. avg: 25%

35%+10pp

SEA Top Quarter

PP-12

Year Range

Overview

Great Southern Grammar School is a independent combined school in Kalgan, Western Australia, serving PP-12. The school has 611 enrolled students. Its ICSEA value is 1080 (above average). The student-to-teacher ratio is 11.2:1. The school is located in a SEIFA IRSD decile 4 area.

Source: ACARA School Profile 2025 (2025)

Key Facts

SectorIndependent

School TypeCombined

Year RangePP-12

Governing BodyAssociation of Independent Schools of WA

Postcode6330

RemotenessOuter Regional

ACARA ID49120

Student Background

Total Enrolments611

Gender Split344 girls / 267 boys

Indigenous Students3%

Language Background Other Than English6%

English Background94%

Socio-Educational Advantage Distribution

Bottom quarter

10%

Lower middle

25%

Upper middle

30%

Top quarter

35%

Source: ACARA School Profile (2025)

Enrolment by Year Level

611 students across 13 year levels (2025)

One year before Yr 116

Yr 124

Yr 223

Yr 325

Yr 421

Yr 548

Yr 632

Yr 780

See full breakdown

Source: ACARA Enrolments by Grade (2025)

Staffing

Teaching Staff62 (54.7 FTE)

Non-Teaching Staff59 (40.0 FTE)

Total Staff121

Student:Teacher Ratio11.2:1