Guildford Grammar School
Updated Oct 2026 · ACARA 2025Guildford, Western Australia 6055 · Swan LGA
#34 of 172 combined schools in WA
#375 of 1,259 nationally
About Guildford Grammar School
Guildford Grammar School is an independent combined (K–12) school located in Guildford, Western Australia (6055), within the Swan local government area. It caters for students from PP to 12 and in 2025 enrolled 1,225 students (504 girls and 721 boys). The school is affiliated with Association of Independent Schools of WA.
Guildford Grammar School has an ICSEA value of 1100, indicating very high socio-educational advantage. That places it in the 84th percentile of Australian schools. 45% of students come from the top socio-educational quarter and 6% from the bottom quarter.
The school employs 127 teachers (116.0 full-time equivalent) and 173 non-teaching staff, giving a student-to-teacher ratio of about 10.6 to 1. Enrolments have grown by 15% over the past five years.
On the Success Index, Guildford Grammar School scores 64.7 out of 100, placing it in the top 50% of combined schools nationally and 34th of 172 combined schools in WA (1st of 8 in the Swan area).
Year 12 ATAR results (2025)
The School Curriculum and Standards Authority lists, for every ATAR course, the schools whose students had combined scores in the top 15% of that course. Guildford Grammar School appears for 4 courses.
Courses
Agribusiness · Business Management and Enterprise · Chemistry · Modern History
WA does not publish median ATARs by school; this list is the official per-school measure of top-end achievement. See WA schools with the most top-performing ATAR students.
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1100
- Students in the top advantage quarter (15%)45% of students
- Teacher resourcing (students per teacher) (15%)10.6 students per teacher
- Enrolment growth vs local area (5 years) (10%)+15% enrolments since 2020 (area median +20%)
- ICSEA trend (5 years) (10%)-13 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 Guildford Grammar School's 1,225 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Guildford Grammar School have changed over the past decade.
Free academic assessment
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Schools near Guildford Grammar School
Closest schools by straight-line distance, with their Success Index.
Governor Stirling Senior High School
Woodbridge · Government high school · 7-12
751 students · ICSEA 961 · 1.0 km away
Guildford Primary School
Guildford · Government primary · K-6
315 students · ICSEA 1044 · 1.4 km away
Woodbridge Primary School
Woodbridge · Government primary · K-6
388 students · ICSEA 1012 · 1.5 km away
Helena River Waldorf School
Midland · Independent combined · PP-7
101 students · ICSEA 1037 · 2.1 km away
Indie School Western Australia
Midland · Independent high school · 9-12
362 students · ICSEA 942 · 2.1 km away
La Salle College
Middle Swan · Catholic high school · 7-12
1,346 students · ICSEA 1028 · 2.8 km away
Casa Mia Montessori Community School
Bassendean · Independent primary · PP-6
53 students · ICSEA 1094 · 2.9 km away
Bassendean Primary School
Bassendean · Government primary · K-6
380 students · ICSEA 1096 · 2.9 km away
Lockridge Primary School
Lockridge · Government primary · K-6
282 students · ICSEA 851 · 3.1 km away
St Michael's School
Bassendean · Catholic primary · PP-6
208 students · ICSEA 1109 · 3.2 km away
Similar schools
Independent combined schools in WA with a comparable ICSEA.
Bunbury Cathedral Grammar School
Gelorup · Independent combined · PP-12
663 students · ICSEA 1100
Lake Joondalup Baptist College
Joondalup · Independent combined · PP-12
1,282 students · ICSEA 1102
Margaret River Montessori School - Margaret River campus
Margaret River · Independent combined · PP-11
141 students · ICSEA 1094
Providence Christian College
Southern River · Independent combined · PP-12
1,041 students · ICSEA 1109
Perth Waldorf School
Bibra Lake · Independent combined · PP-12
561 students · ICSEA 1091
St Mark's Anglican Community School
Hillarys · Independent combined · PP-12
1,856 students · ICSEA 1112
Frequently asked questions
Is Guildford Grammar School a public or private school?
Guildford Grammar School is a Independent school, which makes it a non-government (private) school affiliated with Association of Independent Schools of WA.
What year levels does Guildford Grammar School offer?
Guildford Grammar School offers PP to 12. It is classified by ACARA as a combined school.
How many students attend Guildford Grammar School?
In 2025, Guildford Grammar School had 1,225 enrolled students (504 girls, 721 boys), a change of 15% over five years.
What is the ICSEA of Guildford Grammar School?
Guildford Grammar School has an ICSEA (Index of Community Socio-Educational Advantage) of 1100. The national average is 1000, so this indicates very high socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does Guildford Grammar School rank in WA?
Guildford Grammar School ranks 34th of 172 combined schools in Western Australia on the Success Index (64.7/100), and 375th of 1,259 nationally.
What is the student-to-teacher ratio at Guildford Grammar School?
Guildford Grammar School has about 10.6 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Guildford Grammar School?
In 2025, Guildford Grammar School had 126 students in Year 7 and 142 in Year 12.
Is Guildford Grammar School co-ed?
Yes. Guildford Grammar School is a co-educational school enrolling both girls and boys.
What other schools are near Guildford Grammar School?
There are 10 other schools within 15 km of Guildford Grammar School 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 Guildford Grammar School?
The closest Success Tutoring centre is Success Tutoring Belmont, about 7.8 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.