IndependentCombinedYears R-12· Outer Regional

St Martins Lutheran College

Mount Gambier, SA 5290 · Lutheran Education SA, NT & WA

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ICSEA

1028

59th percentile nationally

Above average

Total enrolments

810

Combined

Student–teacher ratio

12:1

67.1 FTE teachers

Gender mix

51% / 49%

girls / boys

Language background

15%

non-English at home

Socio-educational advantage

Share of students in each national SEA quarter (bottom = most disadvantaged, top = most advantaged).

Bottom: 24%

Lower-mid: 33%

Upper-mid: 26%

Top: 18%

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Other schools in Mount Gambier

Tenison Woods College

Catholic · Combined

1031

Reidy Park Primary School

Government · Primary

990

Grant High School

Government · Secondary

954

Gordon Education Centre

Government · Special

951

McDonald Park School

Government · Primary

948

Mount Gambier High School

Government · Secondary

946

Mulga Street Primary School

Government · Primary

943

Mount Gambier North Primary School

Government · Primary

888

Source: ACARA My School 2025. ICSEA reflects the socio-educational background of a school's students — not academic results or teaching quality. National average = 1000. See data sources.