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Independent schoolCombined Years K-10Co-edMajor Cities

Northside Montessori School

Updated Oct 2026 · ACARA 2025Pymble, New South Wales 2073 · Ku-ring-gai LGA

79.2/ 100
Success Index
Top 10%

#49 of 314 combined schools in NSW
#122 of 1,259 nationally

How is this calculated?
Students
159
+59% over 5 years
ICSEA
1147
95th percentile nationally
Students per teacher
9.4
17.0 FTE teachers
Year range
K-10
Multi-campus school

About Northside Montessori School

Northside Montessori School is an independent combined (K–12) school located in Pymble, New South Wales (2073), within the Ku-ring-gai local government area. It caters for students from K to 10 and in 2025 enrolled 159 students (74 girls and 85 boys). The school is affiliated with Independent Schools NSW.

Northside Montessori School has an ICSEA value of 1147, indicating very high socio-educational advantage. That places it in the 95th percentile of Australian schools. 59% of students come from the top socio-educational quarter and 1% from the bottom quarter.

The school employs 19 teachers (17.0 full-time equivalent) and 19 non-teaching staff, giving a student-to-teacher ratio of about 9.4 to 1. Enrolments have grown by 59% over the past five years.

On the Success Index, Northside Montessori School scores 79.2 out of 100, placing it in the top 10% of combined schools nationally and 49th of 314 combined schools in NSW (7th of 9 in the Ku-ring-gai area).

Success Index breakdown

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

  • Socio-educational advantage (ICSEA) (50%)ICSEA 1147
  • Students in the top advantage quarter (15%)59% of students
  • Teacher resourcing (students per teacher) (15%)9.4 students per teacher
  • Enrolment growth vs local area (5 years) (10%)+59% enrolments since 2020 (area median +11%)
  • ICSEA trend (5 years) (10%)-2 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.

Northside Montessori School
Bottom quarterLower middleUpper middleTop quarter
Girls
74
Boys
85
Language background other than English
33%
Indigenous students
1%

Enrolments by year level

How Northside Montessori School's 159 students are spread across year levels in 2025.

Kindergarten intake
19
Year 7 cohort
17

Enrolment trend

How enrolments at Northside Montessori School have changed over the past decade.

521101672015: 58 students2016: 71 students2017: 87 students2018: 93 students2019: 88 students2020: 100 students2021: 116 students2022: 120 students2023: 144 students2024: 154 students2025: 159 students201520172019202120232025
Total enrolments by year. Source: ACARA school profile data.

Free academic assessment

Is your child on track at Northside Montessori 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
  • Flexible memberships, no lock-in contracts
  • Your nearest centre: Success Tutoring Gordon

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Schools near Northside Montessori School

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

Similar schools

Independent combined schools in NSW with a comparable ICSEA.

Frequently asked questions

Is Northside Montessori School a public or private school?

Northside Montessori School is a Independent school, which makes it a non-government (private) school affiliated with Independent Schools NSW.

What year levels does Northside Montessori School offer?

Northside Montessori School offers K to 10. It is classified by ACARA as a combined school.

How many students attend Northside Montessori School?

In 2025, Northside Montessori School had 159 enrolled students (74 girls, 85 boys), a change of 59% over five years.

What is the ICSEA of Northside Montessori School?

Northside Montessori School has an ICSEA (Index of Community Socio-Educational Advantage) of 1147. The national average is 1000, so this indicates very high socio-educational advantage. ICSEA reflects the school community, not teaching quality.

How does Northside Montessori School rank in NSW?

Northside Montessori School ranks 49th of 314 combined schools in New South Wales on the Success Index (79.2/100), and 122nd of 1,259 nationally.

What is the student-to-teacher ratio at Northside Montessori School?

Northside Montessori School has about 9.4 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.

How big is the Year 7 cohort at Northside Montessori School?

In 2025, Northside Montessori School had 17 students in Year 7.

Is Northside Montessori School co-ed?

Yes. Northside Montessori School is a co-educational school enrolling both girls and boys.

What other schools are near Northside Montessori School?

There are 10 other schools within 15 km of Northside Montessori 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 Northside Montessori School?

The closest Success Tutoring centre is Success Tutoring Gordon, about 2.7 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.