Holy Trinity Primary School
Updated Oct 2026 · ACARA 2025Curtin, Australian Capital Territory 2605 · Unincorporated ACT LGA
About Holy Trinity Primary School
Holy Trinity Primary School is a catholic primary school located in Curtin, Australian Capital Territory (2605), within the Unincorporated ACT local government area. It caters for students from K to 6 and in 2025 enrolled 387 students (194 girls and 193 boys). The school is affiliated with Catholic Education, Archdiocese of Canberra and Goulburn.
Holy Trinity Primary School has an ICSEA value of 1145, indicating very high socio-educational advantage. That places it in the 94th percentile of Australian schools. 59% of students come from the top socio-educational quarter and 2% from the bottom quarter.
The school employs 28 teachers (23.8 full-time equivalent) and 8 non-teaching staff, giving a student-to-teacher ratio of about 16.3 to 1. Enrolments have grown by 6% over the past five years.
On the Success Index, Holy Trinity Primary School scores 81.3 out of 100, placing it in the top 5% of primary schools nationally and 5th of 80 primary schools in ACT (5th of 80 in the Unincorporated ACT area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1145
- Students in the top advantage quarter (15%)59% of students
- Teacher resourcing (students per teacher) (15%)16.3 students per teacher
- Enrolment growth vs local area (5 years) (10%)+6% enrolments since 2020 (area median -3%)
- ICSEA trend (5 years) (10%)+29 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 Holy Trinity Primary School's 387 students are spread across year levels in 2025.
Enrolment trend
How enrolments at Holy Trinity Primary School have changed over the past decade.
Free academic assessment
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Schools near Holy Trinity Primary School
Closest schools by straight-line distance, with their Success Index.
Curtin Primary School
Curtin · Government primary · K-6
408 students · ICSEA 1146 · 484 m away
The Woden School
Deakin · Government special · 7-12
93 students · ICSEA 1046 · 955 m away
Hughes Primary School
Hughes · Government primary · K-6
457 students · ICSEA 1157 · 1.2 km away
Alfred Deakin High School
Deakin · Government high school · 7-10
881 students · ICSEA 1132 · 1.2 km away
The Canberra College
Phillip · Government high school · 11-12
1,174 students · ICSEA 1087 · 1.5 km away
Malkara School
Garran · Government special · K-6
73 students · ICSEA 1021 · 1.5 km away
Lyons Early Childhood School
Lyons · Government primary · K-2
91 students · ICSEA 1116 · 1.6 km away
Sts Peter and Paul Primary School
Garran · Catholic primary · K-6
299 students · ICSEA 1130 · 1.7 km away
Orana Steiner School
Weston · Independent combined · K-12
413 students · ICSEA 1136 · 2.0 km away
Islamic School of Canberra
Weston · Independent combined · K-11
455 students · ICSEA 1073 · 2.1 km away
Similar schools
Catholic primary schools in ACT with a comparable ICSEA.
St Thomas More's Primary School
Campbell · Catholic primary · K-6
179 students · ICSEA 1145
Sacred Heart Primary School
Pearce · Catholic primary · K-6
210 students · ICSEA 1131
St Jude's Primary School
Holder · Catholic primary · K-6
425 students · ICSEA 1131
St Joseph's Primary School
O'Connor · Catholic primary · K-6
334 students · ICSEA 1130
Sts Peter and Paul Primary School
Garran · Catholic primary · K-6
299 students · ICSEA 1130
Rosary Primary School
Watson · Catholic primary · K-6
369 students · ICSEA 1121
Frequently asked questions
Is Holy Trinity Primary School a public or private school?
Holy Trinity Primary School is a Catholic school, which makes it a non-government (private) school affiliated with Catholic Education, Archdiocese of Canberra and Goulburn.
What year levels does Holy Trinity Primary School offer?
Holy Trinity Primary School offers K to 6. It is classified by ACARA as a primary school.
How many students attend Holy Trinity Primary School?
In 2025, Holy Trinity Primary School had 387 enrolled students (194 girls, 193 boys), a change of 6% over five years.
What is the ICSEA of Holy Trinity Primary School?
Holy Trinity Primary School has an ICSEA (Index of Community Socio-Educational Advantage) of 1145. The national average is 1000, so this indicates very high socio-educational advantage. ICSEA reflects the school community, not teaching quality.
How does Holy Trinity Primary School rank in ACT?
Holy Trinity Primary School ranks 5th of 80 primary schools in Australian Capital Territory on the Success Index (81.3/100), and 135th of 4,908 nationally.
What is the student-to-teacher ratio at Holy Trinity Primary School?
Holy Trinity Primary School has about 16.3 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How many students start Kindergarten at Holy Trinity Primary School each year?
In 2025, Holy Trinity Primary School had 52 students in Kindergarten and 51 in Year 6.
Is Holy Trinity Primary School co-ed?
Yes. Holy Trinity Primary School is a co-educational school enrolling both girls and boys.
What other schools are near Holy Trinity Primary School?
There are 10 other schools within 15 km of Holy Trinity 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 Holy Trinity Primary School?
The closest Success Tutoring centre is Success Tutoring Dickson, about 10 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.