St Andrew's Grammar
Updated Oct 2026 · ACARA 2025Dianella, Western Australia 6059 · Stirling LGA
#26 of 172 combined schools in WA
#269 of 1,259 nationally
About St Andrew's Grammar
St Andrew's Grammar is an independent combined (K–12) school located in Dianella, Western Australia (6059), within the Stirling local government area. It caters for students from PP to 12 and in 2025 enrolled 796 students (370 girls and 426 boys). The school is affiliated with Association of Independent Schools of WA.
St Andrew's Grammar has an ICSEA value of 1078, indicating above-average socio-educational advantage. That places it in the 78th percentile of Australian schools. 31% of students come from the top socio-educational quarter and 13% from the bottom quarter.
The school employs 87 teachers (79.1 full-time equivalent) and 38 non-teaching staff, giving a student-to-teacher ratio of about 10.1 to 1. Enrolments have grown by 81% over the past five years.
On the Success Index, St Andrew's Grammar scores 69.6 out of 100, placing it in the top 25% of combined schools nationally and 26th of 172 combined schools in WA (6th of 9 in the Stirling area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1078
- Students in the top advantage quarter (15%)31% of students
- Teacher resourcing (students per teacher) (15%)10.1 students per teacher
- Enrolment growth vs local area (5 years) (10%)+81% enrolments since 2020 (area median +5%)
- ICSEA trend (5 years) (10%)+0 ICSEA points since 2020
The Success Index summarises the academic environment of a school community using official ACARA data. It is not a measure of teaching quality or student results. Read the methodology.
Student profile
Distribution of students across socio-educational advantage (SEA) quarters, plus community characteristics.
Enrolments by year level
How St Andrew's Grammar's 796 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Andrew's Grammar have changed over the past decade.
Free academic assessment
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Schools near St Andrew's Grammar
Closest schools by straight-line distance, with their Success Index.
North Morley Primary School
Dianella · Government primary · K-6
207 students · ICSEA 1032 · 824 m away
Morley Senior High School
Noranda · Government high school · 7-12
1,013 students · ICSEA 1008 · 923 m away
Dianella Heights Primary School
Dianella · Government primary · K-6
448 students · ICSEA 1098 · 1.5 km away
Boyare Primary School
Mirrabooka · Government primary · K-6
176 students · ICSEA 887 · 1.5 km away
Camboon Primary School
Noranda · Government primary · K-6
322 students · ICSEA 1019 · 1.7 km away
Y School WA
Mirrabooka · Independent special · 10-12
103 students · ICSEA 944 · 1.7 km away
Dianella Secondary College
Dianella · Government high school · 7-12
575 students · ICSEA 945 · 2.1 km away
Dianella Secondary College Education Support Centre
Dianella · Government special · 7-12
116 students · ICSEA 977 · 2.1 km away
Dianella Primary College
Dianella · Government primary · K-6
410 students · ICSEA 968 · 2.2 km away
Dryandra Primary School
Mirrabooka · Government primary · K-6
176 students · ICSEA 883 · 2.2 km away
Similar schools
Independent combined schools in WA with a comparable ICSEA.
Great Southern Grammar School
Kalgan · Independent combined · PP-12
611 students · ICSEA 1080
John Septimus Roe Anglican Community School
Mirrabooka · Independent combined · PP-12
1,702 students · ICSEA 1075
Carey Baptist College Forrestdale
Forrestdale · Independent combined · PP-12
760 students · ICSEA 1081
Treetops Montessori School
Darlington · Independent combined · PP-12
153 students · ICSEA 1083
Geraldton Grammar School
Geraldton · Independent combined · PP-12
693 students · ICSEA 1073
Frederick Irwin Anglican School
Mandurah · Independent combined · PP-12
1,682 students · ICSEA 1072
Frequently asked questions
Is St Andrew's Grammar a public or private school?
St Andrew's Grammar is a Independent school, which makes it a non-government (private) school affiliated with Association of Independent Schools of WA.
What year levels does St Andrew's Grammar offer?
St Andrew's Grammar offers PP to 12. It is classified by ACARA as a combined school.
How many students attend St Andrew's Grammar?
In 2025, St Andrew's Grammar had 796 enrolled students (370 girls, 426 boys), a change of 81% over five years.
What is the ICSEA of St Andrew's Grammar?
St Andrew's Grammar has an ICSEA (Index of Community Socio-Educational Advantage) of 1078. The national average is 1000, so this indicates above-average socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does St Andrew's Grammar rank in WA?
St Andrew's Grammar ranks 26th of 172 combined schools in Western Australia on the Success Index (69.6/100), and 269th of 1,259 nationally.
What is the student-to-teacher ratio at St Andrew's Grammar?
St Andrew's Grammar has about 10.1 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at St Andrew's Grammar?
In 2025, St Andrew's Grammar had 78 students in Year 7 and 52 in Year 12.
Is St Andrew's Grammar co-ed?
Yes. St Andrew's Grammar is a co-educational school enrolling both girls and boys.
What other schools are near St Andrew's Grammar?
There are 10 other schools within 15 km of St Andrew's Grammar in our database. Scroll up to the "Nearby schools" section to compare them by Success Index, ICSEA and enrolments, or use the Compare tool.
Where can I get tutoring near St Andrew's Grammar?
The closest Success Tutoring centre is Success Tutoring Yokine, about 3.6 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.