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Public schoolHigh school Years 7-12Co-edInner Regional

Collie Senior High School

Updated Oct 2026 · ACARA 2025Collie, Western Australia 6225 · Collie LGA

24.6/ 100
Success Index
Lower 50%

#123 of 140 high schools in WA
#1322 of 1,472 nationally

How is this calculated?
Students
537
+2% over 5 years
ICSEA
920
15th percentile nationally
Students per teacher
12.0
44.8 FTE teachers
Year range
7-12

About Collie Senior High School

Collie Senior High School is a public high school located in Collie, Western Australia (6225), within the Collie local government area. It caters for students from 7 to 12 and in 2025 enrolled 537 students (234 girls and 303 boys).

Collie Senior High School has an ICSEA value of 920, indicating below-average socio-educational advantage. That places it in the 15th percentile of Australian schools. 3% of students come from the top socio-educational quarter and 59% from the bottom quarter.

The school employs 50 teachers (44.8 full-time equivalent) and 47 non-teaching staff, giving a student-to-teacher ratio of about 12.0 to 1. Enrolments have remained steady over the past five years.

On the Success Index, Collie Senior High School scores 24.6 out of 100, placing it in the lower 50% of secondary schools nationally and 123rd of 140 secondary schools in WA.

Success Index breakdown

Each component is a percentile against schools of the same type across Australia.

  • Socio-educational advantage (ICSEA) (50%)ICSEA 920
  • Students in the top advantage quarter (15%)3% of students
  • Teacher resourcing (students per teacher) (15%)12.0 students per teacher
  • Enrolment growth vs local area (5 years) (10%)+2% enrolments since 2020
  • ICSEA trend (5 years) (10%)-9 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.

Collie Senior High School
Bottom quarterLower middleUpper middleTop quarter
Girls
234
Boys
303
Language background other than English
6%
Indigenous students
19%

Enrolments by year level

How Collie Senior High School's 537 students are spread across year levels in 2025.

Year 7 cohort
102
Year 12 cohort
53

Enrolment trend

How enrolments at Collie Senior High School have changed over the past decade.

4505356202015: 590 students2016: 557 students2017: 527 students2018: 523 students2019: 520 students2020: 524 students2021: 507 students2022: 500 students2023: 516 students2024: 525 students2025: 537 students201520172019202120232025
Total enrolments by year. Source: ACARA school profile data.

Free academic assessment

Is your child on track at Collie Senior High School?

Rankings tell you about a school community. A free Success Tutoring assessment tells you about your child: exactly where they are in English and Maths, where the gaps are, and a plan to close them. Small-group, Australian-curriculum tutoring with no lock-in contracts.

  • Personalised learning plan mapped to the Australian Curriculum
  • English & Maths from Kindergarten to Year 12
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  • Your nearest centre: Success Tutoring Baldivis

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Schools near Collie Senior High School

Closest schools by straight-line distance, with their Success Index.

Similar schools

Government secondary schools in WA with a comparable ICSEA.

Frequently asked questions

Is Collie Senior High School a public or private school?

Collie Senior High School is a public (government) school run by the Western Australia education department.

What year levels does Collie Senior High School offer?

Collie Senior High School offers 7 to 12. It is classified by ACARA as a secondary school.

How many students attend Collie Senior High School?

In 2025, Collie Senior High School had 537 enrolled students (234 girls, 303 boys), a change of 2% over five years.

What is the ICSEA of Collie Senior High School?

Collie Senior High School has an ICSEA (Index of Community Socio-Educational Advantage) of 920. The national average is 1000, so this indicates below-average socio-educational advantage. ICSEA reflects the school community, not teaching quality.

How does Collie Senior High School rank in WA?

Collie Senior High School ranks 123rd of 140 secondary schools in Western Australia on the Success Index (24.6/100), and 1322nd of 1,472 nationally.

What is the student-to-teacher ratio at Collie Senior High School?

Collie Senior High School has about 12.0 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.

How big is the Year 7 cohort at Collie Senior High School?

In 2025, Collie Senior High School had 102 students in Year 7 and 53 in Year 12.

Is Collie Senior High School co-ed?

Yes. Collie Senior High School is a co-educational school enrolling both girls and boys.

What other schools are near Collie Senior High School?

There are 5 other schools within 15 km of Collie Senior High 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 Collie Senior High School?

The closest Success Tutoring centre is Success Tutoring Baldivis, about 119 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.