Mercy College
Updated Oct 2026 · ACARA 2025Koondoola, Western Australia 6064 · Wanneroo LGA
#146 of 172 combined schools in WA
#1125 of 1,259 nationally
About Mercy College
Mercy College is a catholic combined (K–12) school located in Koondoola, Western Australia (6064), within the Wanneroo local government area. It caters for students from PP to 12 and in 2025 enrolled 1,574 students (808 girls and 766 boys). The school is affiliated with Catholic Education Western Australia.
Mercy College has an ICSEA value of 988, indicating a socio-educational profile close to the national average of 1000. That places it in the 42nd percentile of Australian schools. 8% of students come from the top socio-educational quarter and 38% from the bottom quarter.
The school employs 121 teachers (110.4 full-time equivalent) and 80 non-teaching staff, giving a student-to-teacher ratio of about 14.3 to 1. Enrolments have remained steady over the past five years.
On the Success Index, Mercy College scores 27.7 out of 100, placing it in the lower 50% of combined schools nationally and 146th of 172 combined schools in WA (10th of 10 in the Wanneroo area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 988
- Students in the top advantage quarter (15%)8% of students
- Teacher resourcing (students per teacher) (15%)14.3 students per teacher
- Enrolment growth vs local area (5 years) (10%)+1% enrolments since 2020 (area median +19%)
- ICSEA trend (5 years) (10%)-23 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 Mercy College's 1,574 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Mercy College have changed over the past decade.
Free academic assessment
Is your child on track at Mercy College?
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.
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Schools near Mercy College
Closest schools by straight-line distance, with their Success Index.
Emmanuel Christian Community School
Girrawheen · Independent combined · PP-12
711 students · ICSEA 973 · 875 m away
Roseworth Primary School
Girrawheen · Government primary · K-6
299 students · ICSEA 899 · 904 m away
Roseworth Education Support Centre
Girrawheen · Government special · K-6
70 students · ICSEA 959 · 904 m away
Dryandra Primary School
Mirrabooka · Government primary · K-6
176 students · ICSEA 883 · 934 m away
Waddington Primary School
Koondoola · Government primary · K-6
82 students · ICSEA 834 · 1.1 km away
Burbridge School
Koondoola · Government special · K-12
64 students · ICSEA 987 · 1.1 km away
John Septimus Roe Anglican Community School
Mirrabooka · Independent combined · PP-12
1,702 students · ICSEA 1075 · 1.1 km away
Koondoola Primary School
Koondoola · Government primary · K-6
279 students · ICSEA 871 · 1.2 km away
Balga Senior High School
Balga · Government high school · 7-12
596 students · ICSEA 909 · 1.2 km away
Majella Catholic Primary School
Balga · Catholic primary · PP-6
233 students · ICSEA 958 · 1.3 km away
Similar schools
Catholic combined schools in WA with a comparable ICSEA.
St Joseph's School
Northam · Catholic combined · PP-12
721 students · ICSEA 1013
Kearnan College
Manjimup · Catholic combined · PP-12
338 students · ICSEA 1017
St Joseph's College
Albany · Catholic combined · PP-12
675 students · ICSEA 1023
St Mary Star of the Sea College
Carnarvon · Catholic combined · PP-12
321 students · ICSEA 951
Mandurah Catholic College
Mandurah · Catholic combined · PP-12
1,604 students · ICSEA 1030
Mother Teresa Catholic College
Baldivis · Catholic combined · PP-12
1,526 students · ICSEA 1034
Frequently asked questions
Is Mercy College a public or private school?
Mercy College is a Catholic school, which makes it a non-government (private) school affiliated with Catholic Education Western Australia.
What year levels does Mercy College offer?
Mercy College offers PP to 12. It is classified by ACARA as a combined school.
How many students attend Mercy College?
In 2025, Mercy College had 1,574 enrolled students (808 girls, 766 boys), a change of 1% over five years.
What is the ICSEA of Mercy College?
Mercy College has an ICSEA (Index of Community Socio-Educational Advantage) of 988. The national average is 1000, so this indicates a socio-educational profile close to the national average of 1000. ICSEA reflects the school community, not teaching quality.
How does Mercy College rank in WA?
Mercy College ranks 146th of 172 combined schools in Western Australia on the Success Index (27.7/100), and 1125th of 1,259 nationally.
What is the student-to-teacher ratio at Mercy College?
Mercy College has about 14.3 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Mercy College?
In 2025, Mercy College had 214 students in Year 7 and 172 in Year 12.
Is Mercy College co-ed?
Yes. Mercy College is a co-educational school enrolling both girls and boys.
What other schools are near Mercy College?
There are 10 other schools within 15 km of Mercy 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 Mercy College?
The closest Success Tutoring centre is Success Tutoring Landsdale, about 4.2 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.