Great Southern Grammar School
Great Southern Grammar School is an independent primary and secondary school for boys and girls, from Pre-primary to Year 12, in Kalgan, Western Australia.

What Great Southern Grammar School is like
It has 611 students (344 girls and 267 boys) and the equivalent of 54.7 full-time teachers, about 11 students for each teacher.
The school is run by Association of Independent Schools of WA.
As an independent school it sets its own fees. Ask the school for the current fee schedule, including any scholarships or bursaries.
Its ICSEA value is 1080, against a national average of 1000. ICSEA describes the educational advantage of the families a school serves, not the quality of the school; read it alongside the school's results on My School.
Great Southern Grammar School at a glance
- Students
- 611
- 2025
- Girls and boys
- 56% / 44%
- 344 girls, 267 boys
- Teachers
- 54.7
- full-time equivalent
- Students per teacher
- 11.2 to 1
- not the same as class size
- Years
- Pre-primary to Year 12
Students, staff and years: Source: Australian Curriculum, Assessment and Reporting Authority (ACARA), School Profile 2025. Results are on My School, not here.
Inside Great Southern Grammar School
Photos from the school’s website (opens in a new tab).
Great Southern Grammar School fees
Great Southern Grammar School has not published its fees with us yet. Fees at independent schools in Australia usually rise with the year level, and many schools offer sibling discounts, scholarships and bursaries. The quickest way to get the current fee schedule is to ask the school; enquiries are free.
NAPLAN results and the school profile
Australian schools are not given inspection grades. Each school’s NAPLAN results, finances, attendance and student background are published by ACARA on My School: Great Southern Grammar School on My School.
Non-government schools are registered and reviewed by the school registration authority in Western Australia. Ask the school for its most recent annual report, which every Australian school publishes.
How to get a place
Independent schools run their own enrolment. Most invite families to an open day or a tour, then ask for an application form and fee; popular schools fill their entry years (often Pre-primary and Year 7) a year or more ahead. Ask Great Southern Grammar School about places for your child’s year level.
Open day dates for Great Southern Grammar School are not listed yet. Enquire and the school can send you the next dates directly.
Common questions about Great Southern Grammar School
- Is Great Southern Grammar School a government, Catholic or independent school?
- Great Southern Grammar School is an independent primary and secondary school in Western Australia. Its governing body is Association of Independent Schools of WA.
- What years does Great Southern Grammar School teach?
- Great Southern Grammar School teaches Pre-primary to Year 12, for boys and girls.
- How many students are enrolled at Great Southern Grammar School?
- Great Southern Grammar School had 611 students in 2025, according to ACARA. That is about 11.2 students per full-time-equivalent teacher, which is not the same as class size.
- What is the ICSEA value of Great Southern Grammar School?
- Great Southern Grammar School has an ICSEA value of 1080, against a national average of 1000. ICSEA describes the educational advantage of the families a school serves, not the quality of the school; read it alongside the school's results on My School.
Other combined schools near Great Southern Grammar School
No other schools of this type within about 3 km.






