Mount St Benedict College
Updated Oct 2026 · ACARA 2025Pennant Hills, New South Wales 2120 · Hornsby LGA
About Mount St Benedict College
Mount St Benedict College is an independent girls' high school located in Pennant Hills, New South Wales (2120), within the Hornsby local government area. It caters for students from 7 to 12 and in 2025 enrolled 1,331 students. The school is affiliated with Catholic Schools NSW.
Mount St Benedict College has an ICSEA value of 1147, indicating very high socio-educational advantage. That places it in the 95th percentile of Australian schools. 57% of students come from the top socio-educational quarter and 2% from the bottom quarter.
The school employs 116 teachers (107.1 full-time equivalent) and 64 non-teaching staff, giving a student-to-teacher ratio of about 12.4 to 1. Enrolments have grown by 20% over the past five years.
On the Success Index, Mount St Benedict College scores 84.2 out of 100, placing it in the top 5% of secondary schools nationally and 10th of 539 secondary schools in NSW (1st of 11 in the Hornsby 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%)57% of students
- Teacher resourcing (students per teacher) (15%)12.4 students per teacher
- Enrolment growth vs local area (5 years) (10%)+20% enrolments since 2020 (area median +1%)
- ICSEA trend (5 years) (10%)+7 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 Mount St Benedict College's 1,331 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Mount St Benedict College have changed over the past decade.
Free academic assessment
Is your child on track at Mount St Benedict 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 Mount St Benedict College
Closest schools by straight-line distance, with their Success Index.
St Agatha's Catholic Primary School
Pennant Hills · Catholic primary · K-6
217 students · ICSEA 1147 · 652 m away
Pennant Hills High School
Pennant Hills · Government high school · 7-12
1,131 students · ICSEA 1109 · 775 m away
Arden Anglican School, Junior Campus
Beecroft · Independent combined · K-12
997 students · ICSEA 1173 · 797 m away
Pennant Hills Public School
Pennant Hills · Government primary · K-6
490 students · ICSEA 1143 · 917 m away
West Pennant Hills Public School
West Pennant Hills · Government primary · K-6
510 students · ICSEA 1134 · 1.1 km away
Beecroft Public School
Beecroft · Government primary · K-6
837 students · ICSEA 1187 · 1.3 km away
Cherrybrook Public School
Cherrybrook · Government primary · K-6
886 students · ICSEA 1164 · 2.0 km away
Cheltenham Girls High School
Beecroft · Government high school · 7-12
1,436 students · ICSEA 1142 · 2.1 km away
Thornleigh West Public School
Thornleigh · Government primary · K-6
477 students · ICSEA 1142 · 2.2 km away
Tangara School for Girls
Cherrybrook · Independent combined · K-12
771 students · ICSEA 1141 · 2.3 km away
Similar schools
Independent secondary schools in NSW with a comparable ICSEA.
Brigidine College St Ives
St Ives · Independent high school · 7-12
793 students · ICSEA 1148
St Vincent's College
Potts Point · Independent high school · 7-12
755 students · ICSEA 1145
Our Lady of Mercy College Parramatta
Parramatta · Independent high school · 7-12
1,097 students · ICSEA 1144
Westbourne College Sydney
Ultimo · Independent high school · 10-12
65 students · ICSEA 1153
Sydney Science College
Epping · Independent high school · 11-12
20 students · ICSEA 1140
St Scholastica's College Glebe Point
Glebe · Independent high school · 7-12
1,044 students · ICSEA 1138
Frequently asked questions
Is Mount St Benedict College a public or private school?
Mount St Benedict College is a Independent school, which makes it a non-government (private) school affiliated with Catholic Schools NSW.
What year levels does Mount St Benedict College offer?
Mount St Benedict College offers 7 to 12. It is classified by ACARA as a secondary school.
How many students attend Mount St Benedict College?
In 2025, Mount St Benedict College had 1,331 enrolled students (1,331 girls, 0 boys), a change of 20% over five years.
What is the ICSEA of Mount St Benedict College?
Mount St Benedict College 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 Mount St Benedict College rank in NSW?
Mount St Benedict College ranks 10th of 539 secondary schools in New South Wales on the Success Index (84.2/100), and 24th of 1,472 nationally.
What is the student-to-teacher ratio at Mount St Benedict College?
Mount St Benedict College has about 12.4 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at Mount St Benedict College?
In 2025, Mount St Benedict College had 256 students in Year 7 and 156 in Year 12.
Is Mount St Benedict College co-ed?
No. Mount St Benedict College is a girls' school.
What other schools are near Mount St Benedict College?
There are 10 other schools within 15 km of Mount St Benedict 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 Mount St Benedict College?
The closest Success Tutoring centre is Success Tutoring Epping, about 3.7 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.