St Mary's Primary School
Updated Oct 2026 · ACARA 2025Grafton, New South Wales 2460 · Clarence Valley LGA
#812 of 1,619 primary schools in NSW
#2489 of 4,908 nationally
About St Mary's Primary School
St Mary's Primary School is a catholic primary school located in Grafton, New South Wales (2460), within the Clarence Valley local government area. It caters for students from K to 6 and in 2025 enrolled 259 students (123 girls and 136 boys). The school is affiliated with Catholic Schools NSW.
St Mary's Primary School has an ICSEA value of 1020, indicating a socio-educational profile close to the national average of 1000. That places it in the 56th percentile of Australian schools. 14% of students come from the top socio-educational quarter and 24% from the bottom quarter.
The school employs 20 teachers (17.0 full-time equivalent) and 14 non-teaching staff, giving a student-to-teacher ratio of about 15.2 to 1. Enrolments have grown by 38% over the past five years.
On the Success Index, St Mary's Primary School scores 53.0 out of 100, placing it in the top 50% of primary schools nationally and 812th of 1,619 primary schools in NSW (3rd of 13 in the Clarence Valley area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1020
- Students in the top advantage quarter (15%)14% of students
- Teacher resourcing (students per teacher) (15%)15.2 students per teacher
- Enrolment growth vs local area (5 years) (10%)+38% enrolments since 2020 (area median -1%)
- ICSEA trend (5 years) (10%)-10 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 St Mary's Primary School's 259 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Mary's Primary School have changed over the past decade.
Free academic assessment
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Schools near St Mary's Primary School
Closest schools by straight-line distance, with their Success Index.
Westlawn Public School
Grafton · Government primary · K-6
467 students · ICSEA 940 · 518 m away
Grafton High School
Grafton · Government high school · 7-12
768 students · ICSEA 941 · 972 m away
Grafton Public School
Grafton · Government primary · K-6
476 students · ICSEA 907 · 1.3 km away
South Grafton Public School
South Grafton · Government primary · K-6
564 students · ICSEA 905 · 4.1 km away
McAuley Catholic College
Clarenza · Catholic high school · 7-12
602 students · ICSEA 1031 · 4.1 km away
South Grafton High School
South Grafton · Government high school · 7-12
639 students · ICSEA 875 · 4.6 km away
St Andrew's Christian School
Grafton · Independent combined · K-12
209 students · ICSEA 974 · 4.8 km away
Induna School
South Grafton · Government special · U
26 students · ICSEA 754 · 5.6 km away
Gillwinga Public School
South Grafton · Government primary · K-6
129 students · ICSEA 774 · 5.7 km away
St Joseph's Primary School
South Grafton · Catholic primary · K-6
126 students · ICSEA 979 · 5.8 km away
Similar schools
Catholic primary schools in NSW with a comparable ICSEA.
St Mary's Primary School
Moruya · Catholic primary · K-6
174 students · ICSEA 1020
St Canice's Primary School
Katoomba · Catholic primary · K-6
67 students · ICSEA 1020
Catherine McAuley Catholic Primary School Orange
Orange · Catholic primary · K-6
505 students · ICSEA 1020
St Joseph's Primary School
Kingswood · Catholic primary · K-6
310 students · ICSEA 1019
St Matthew's Primary School
Windsor · Catholic primary · K-6
303 students · ICSEA 1021
St Anthony's Catholic Primary School
Picton · Catholic primary · K-6
410 students · ICSEA 1019
Frequently asked questions
Is St Mary's Primary School a public or private school?
St Mary's Primary School is a Catholic school, which makes it a non-government (private) school affiliated with Catholic Schools NSW.
What year levels does St Mary's Primary School offer?
St Mary's Primary School offers K to 6. It is classified by ACARA as a primary school.
How many students attend St Mary's Primary School?
In 2025, St Mary's Primary School had 259 enrolled students (123 girls, 136 boys), a change of 38% over five years.
What is the ICSEA of St Mary's Primary School?
St Mary's Primary School has an ICSEA (Index of Community Socio-Educational Advantage) of 1020. 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 St Mary's Primary School rank in NSW?
St Mary's Primary School ranks 812th of 1,619 primary schools in New South Wales on the Success Index (53.0/100), and 2489th of 4,908 nationally.
What is the student-to-teacher ratio at St Mary's Primary School?
St Mary's Primary School has about 15.2 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How many students start Kindergarten at St Mary's Primary School each year?
In 2025, St Mary's Primary School had 44 students in Kindergarten and 28 in Year 6.
Is St Mary's Primary School co-ed?
Yes. St Mary's Primary School is a co-educational school enrolling both girls and boys.
What other schools are near St Mary's Primary School?
There are 10 other schools within 15 km of St Mary's 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's Primary School?
The closest Success Tutoring centre is Success Tutoring Mount Gravatt East, about 238 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.