St Martins Lutheran College
Updated Oct 2026 · ACARA 2025Mount Gambier, South Australia 5290 · Mount Gambier LGA
#54 of 145 combined schools in SA
#667 of 1,259 nationally
About St Martins Lutheran College
St Martins Lutheran College is an independent combined (K–12) school located in Mount Gambier, South Australia (5290), within the Mount Gambier local government area. It caters for students from R to 12 and in 2025 enrolled 810 students (412 girls and 398 boys). The school is affiliated with Lutheran Education SA, NT & WA.
St Martins Lutheran College has an ICSEA value of 1028, indicating a socio-educational profile close to the national average of 1000. That places it in the 59th percentile of Australian schools. 18% of students come from the top socio-educational quarter and 24% from the bottom quarter.
The school employs 80 teachers (67.1 full-time equivalent) and 62 non-teaching staff, giving a student-to-teacher ratio of about 12.1 to 1. Enrolments have grown by 9% over the past five years.
On the Success Index, St Martins Lutheran College scores 49.7 out of 100, placing it in the top 50% of combined schools nationally and 54th of 145 combined schools in SA (2nd of 2 in the Mount Gambier area).
Success Index breakdown
Each component is a percentile against schools of the same type across Australia.
- Socio-educational advantage (ICSEA) (50%)ICSEA 1028
- Students in the top advantage quarter (15%)18% of students
- Teacher resourcing (students per teacher) (15%)12.1 students per teacher
- Enrolment growth vs local area (5 years) (10%)+9% enrolments since 2020
- ICSEA trend (5 years) (10%)-5 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 Martins Lutheran College's 810 students are spread across year levels in 2025.
Enrolment trend
How enrolments at St Martins Lutheran College have changed over the past decade.
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Schools near St Martins Lutheran College
Closest schools by straight-line distance, with their Success Index.
McDonald Park School
Mount Gambier · Government primary · U, R-6
379 students · ICSEA 948 · 653 m away
Mount Gambier North Primary School
Mount Gambier · Government primary · U, R-6
190 students · ICSEA 888 · 2.0 km away
Melaleuca Park Primary School
Mount Gambier · Government primary · U, R-6
107 students · ICSEA 882 · 2.3 km away
Gordon Education Centre
Mount Gambier · Government special · U
62 students · ICSEA 951 · 2.6 km away
Reidy Park Primary School
Mount Gambier · Government primary · R-6
474 students · ICSEA 990 · 2.7 km away
Mount Gambier High School
Mount Gambier · Government high school · U, 7-12
778 students · ICSEA 946 · 2.9 km away
Grant High School
Mount Gambier · Government high school · U, 7-12
978 students · ICSEA 954 · 2.9 km away
Mulga Street Primary School
Mount Gambier · Government primary · R-6
189 students · ICSEA 943 · 3.5 km away
Suttontown Primary School
Suttontown · Government primary · R-6
101 students · ICSEA 960 · 3.6 km away
Tenison Woods College
Mount Gambier · Catholic combined · R-12
1,552 students · ICSEA 1031 · 3.8 km away
Similar schools
Independent combined schools in SA with a comparable ICSEA.
Garden College
Parafield Gardens · Independent combined · R-12
351 students · ICSEA 1029
Sunrise Christian School Naracoorte
Naracoorte · Independent combined · R-9
109 students · ICSEA 1032
Trinity College Gawler River
Angle Vale · Independent combined · R-10
970 students · ICSEA 1032
Prescott College Southern
Morphett Vale · Independent combined · R-12
707 students · ICSEA 1036
Trinity College Blakeview
Blakeview · Independent combined · R-10
635 students · ICSEA 1037
Southern Vales Christian College
Morphett Vale · Independent combined · R-12
503 students · ICSEA 1038
Frequently asked questions
Is St Martins Lutheran College a public or private school?
St Martins Lutheran College is a Independent school, which makes it a non-government (private) school affiliated with Lutheran Education SA, NT & WA.
What year levels does St Martins Lutheran College offer?
St Martins Lutheran College offers R to 12. It is classified by ACARA as a combined school.
How many students attend St Martins Lutheran College?
In 2025, St Martins Lutheran College had 810 enrolled students (412 girls, 398 boys), a change of 9% over five years.
What is the ICSEA of St Martins Lutheran College?
St Martins Lutheran College has an ICSEA (Index of Community Socio-Educational Advantage) of 1028. 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 Martins Lutheran College rank in SA?
St Martins Lutheran College ranks 54th of 145 combined schools in South Australia on the Success Index (49.7/100), and 667th of 1,259 nationally.
What is the student-to-teacher ratio at St Martins Lutheran College?
St Martins Lutheran College has about 12.1 students per full-time-equivalent teacher, based on 2025 ACARA staffing data.
How big is the Year 7 cohort at St Martins Lutheran College?
In 2025, St Martins Lutheran College had 103 students in Year 7 and 58 in Year 12.
Is St Martins Lutheran College co-ed?
Yes. St Martins Lutheran College is a co-educational school enrolling both girls and boys.
What other schools are near St Martins Lutheran College?
There are 10 other schools within 15 km of St Martins Lutheran 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 St Martins Lutheran College?
The closest Success Tutoring centre is Success Tutoring Torquay, about 314 km from the school. Success Tutoring offers a free academic assessment to identify your child's strengths and learning gaps before any sessions begin.