Dianella Secondary College
Updated Oct 2026 · ACARA 2025Dianella, Western Australia 6059 · Stirling LGA
#101 of 140 high schools in WA
#1152 of 1,472 nationally
About Dianella Secondary College
Dianella Secondary College is a public high school located in Dianella, Western Australia (6059), within the Stirling local government area. It caters for students from 7 to 12 and in 2025 enrolled 575 students (273 girls and 302 boys).
Dianella Secondary College has an ICSEA value of 945, indicating below-average socio-educational advantage. That places it in the 23rd percentile of Australian schools. 6% of students come from the top socio-educational quarter and 54% from the bottom quarter.
The school employs 43 teachers (41.7 full-time equivalent) and 31 non-teaching staff, giving a student-to-teacher ratio of about 13.8 to 1. Enrolments have grown by 5% over the past five years.
On the Success Index, Dianella Secondary College scores 31.2 out of 100, placing it in the lower 50% of secondary schools nationally and 101st of 140 secondary schools in WA (7th of 7 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 945
- Students in the top advantage quarter (15%)6% of students
- Teacher resourcing (students per teacher) (15%)13.8 students per teacher
- Enrolment growth vs local area (5 years) (10%)+5% enrolments since 2020 (area median +5%)
- ICSEA trend (5 years) (10%)+11 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 Dianella Secondary College's 575 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Dianella Secondary College have changed over the past decade.
Free academic assessment
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Schools near Dianella Secondary College
Closest schools by straight-line distance, with their Success Index.
Dianella Secondary College Education Support Centre
Dianella · Government special · 7-12
116 students · ICSEA 977 · 0 m away
Dianella Primary College
Dianella · Government primary · K-6
410 students · ICSEA 968 · 214 m away
Y School WA
Mirrabooka · Independent special · 10-12
103 students · ICSEA 944 · 898 m away
St Gerard's Catholic Primary School
Westminster · Catholic primary · PP-6
176 students · ICSEA 1015 · 976 m away
Our Lady of Lourdes School
Nollamara · Catholic primary · PP-6
192 students · ICSEA 1071 · 1.2 km away
Dianella Heights Primary School
Dianella · Government primary · K-6
448 students · ICSEA 1098 · 1.3 km away
Nollamara Primary School
Nollamara · Government primary · K-6
390 students · ICSEA 981 · 1.4 km away
West Coast Steiner School
Nollamara · Independent primary · PP-6
172 students · ICSEA 1101 · 1.5 km away
Westminster Primary School
Westminster · Government primary · K-6
372 students · ICSEA 971 · 1.7 km away
Westminster Education Support Centre
Westminster · Government special · K-6
97 students · ICSEA 979 · 1.7 km away
Similar schools
Government secondary schools in WA with a comparable ICSEA.
Esperance Senior High School
Esperance · Government high school · 7-12
761 students · ICSEA 946
Lakeland Senior High School
South Lake · Government high school · 7-12
566 students · ICSEA 944
Harvey Senior High School
Harvey · Government high school · 7-12
271 students · ICSEA 942
Southern River College
Gosnells · Government high school · 7-12
1,209 students · ICSEA 941
Eaton Community College
Eaton · Government high school · 7-12
449 students · ICSEA 949
Busselton Senior High School
Busselton · Government high school · 7-12
594 students · ICSEA 952
Frequently asked questions
Is Dianella Secondary College a public or private school?
Dianella Secondary College is a public (government) school run by the Western Australia education department.
What year levels does Dianella Secondary College offer?
Dianella Secondary College offers 7 to 12. It is classified by ACARA as a secondary school.
How many students attend Dianella Secondary College?
In 2025, Dianella Secondary College had 575 enrolled students (273 girls, 302 boys), a change of 5% over five years.
What is the ICSEA of Dianella Secondary College?
Dianella Secondary College has an ICSEA (Index of Community Socio-Educational Advantage) of 945. The national average is 1000, so this indicates below-average socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does Dianella Secondary College rank in WA?
Dianella Secondary College ranks 101st of 140 secondary schools in Western Australia on the Success Index (31.2/100), and 1152nd of 1,472 nationally.
What is the student-to-teacher ratio at Dianella Secondary College?
Dianella Secondary College has about 13.8 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Dianella Secondary College?
In 2025, Dianella Secondary College had 135 students in Year 7 and 67 in Year 12.
Is Dianella Secondary College co-ed?
Yes. Dianella Secondary College is a co-educational school enrolling both girls and boys.
What other schools are near Dianella Secondary College?
There are 10 other schools within 15 km of Dianella Secondary College 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 Dianella Secondary College?
The closest Success Tutoring centre is Success Tutoring Yokine, about 2.6 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.