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Catholic schoolPrimary Years Prep-6Co-edMajor Cities

St Mary MacKillop Primary School

Updated Oct 2026 · ACARA 2025Keilor Downs, Victoria 3038 · Brimbank LGA

63.1/ 100
Success Index
Top 50%

#582 of 1,290 primary schools in VIC
#1638 of 4,908 nationally

How is this calculated?
Students
502
-13% over 5 years
ICSEA
1059
72nd percentile nationally
Students per teacher
15.4
32.6 FTE teachers
Year range
Prep-6

About St Mary MacKillop Primary School

St Mary MacKillop Primary School is a catholic primary school located in Keilor Downs, Victoria (3038), within the Brimbank local government area. It caters for students from Prep to 6 and in 2025 enrolled 502 students (257 girls and 245 boys). The school is affiliated with Victorian Catholic Education Authority.

St Mary MacKillop Primary School has an ICSEA value of 1059, indicating above-average socio-educational advantage. That places it in the 72nd percentile of Australian schools. 22% of students come from the top socio-educational quarter and 14% from the bottom quarter.

The school employs 38 teachers (32.6 full-time equivalent) and 20 non-teaching staff, giving a student-to-teacher ratio of about 15.4 to 1. Enrolments have fallen by 13% over the past five years.

On the Success Index, St Mary MacKillop Primary School scores 63.1 out of 100, placing it in the top 50% of primary schools nationally and 582nd of 1,290 primary schools in VIC (6th of 45 in the Brimbank area).

Success Index breakdown

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

  • Socio-educational advantage (ICSEA) (50%)ICSEA 1059
  • Students in the top advantage quarter (15%)22% of students
  • Teacher resourcing (students per teacher) (15%)15.4 students per teacher
  • Enrolment growth vs local area (5 years) (10%)-13% enrolments since 2020 (area median -11%)
  • ICSEA trend (5 years) (10%)+15 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.

St Mary MacKillop Primary School
Bottom quarterLower middleUpper middleTop quarter
Girls
257
Boys
245
Language background other than English
27%
Indigenous students
0%

Enrolments by year level

How St Mary MacKillop Primary School's 502 students are spread across year levels in 2025.

Prep intake
56

Enrolment trend

How enrolments at St Mary MacKillop Primary School have changed over the past decade.

4525596672015: 635 students2016: 632 students2017: 626 students2018: 607 students2019: 597 students2020: 574 students2021: 562 students2022: 538 students2023: 536 students2024: 520 students2025: 502 students201520172019202120232025
Total enrolments by year. Source: ACARA school profile data.

Free academic assessment

Is your child on track at St Mary MacKillop Primary 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.

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  • English & Maths from Kindergarten to Year 12
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  • Your nearest centre: Success Tutoring Caroline Springs

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Schools near St Mary MacKillop Primary School

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

Similar schools

Catholic primary schools in VIC with a comparable ICSEA.

Frequently asked questions

Is St Mary MacKillop Primary School a public or private school?

St Mary MacKillop Primary School is a Catholic school, which makes it a non-government (private) school affiliated with Victorian Catholic Education Authority.

What year levels does St Mary MacKillop Primary School offer?

St Mary MacKillop Primary School offers Prep to 6. It is classified by ACARA as a primary school.

How many students attend St Mary MacKillop Primary School?

In 2025, St Mary MacKillop Primary School had 502 enrolled students (257 girls, 245 boys), a change of -13% over five years.

What is the ICSEA of St Mary MacKillop Primary School?

St Mary MacKillop Primary School has an ICSEA (Index of Community Socio-Educational Advantage) of 1059. The national average is 1000, so this indicates above-average socio-educational advantage. ICSEA reflects the school community, not teaching quality.

How does St Mary MacKillop Primary School rank in VIC?

St Mary MacKillop Primary School ranks 582nd of 1,290 primary schools in Victoria on the Success Index (63.1/100), and 1638th of 4,908 nationally.

What is the student-to-teacher ratio at St Mary MacKillop Primary School?

St Mary MacKillop Primary School has about 15.4 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.

How many students start Prep at St Mary MacKillop Primary School each year?

In 2025, St Mary MacKillop Primary School had 56 students in Prep and 87 in Year 6.

Is St Mary MacKillop Primary School co-ed?

Yes. St Mary MacKillop Primary School is a co-educational school enrolling both girls and boys.

What other schools are near St Mary MacKillop Primary School?

There are 10 other schools within 15 km of St Mary MacKillop Primary 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 St Mary MacKillop Primary School?

The closest Success Tutoring centre is Success Tutoring Caroline Springs, about 6.2 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.