Overview
Mount Gambier High School is a government secondary school in Mount Gambier, South Australia, serving U, 7-12. The school has 778 enrolled students. Its ICSEA value is 946 (below average). The student-to-teacher ratio is 13.9:1. The school is located in a SEIFA IRSD decile 1 area.
Source: ACARA School Profile 2025 (2025)
Key Facts
SectorGovernment
School TypeSecondary
Year RangeU, 7-12
Governing BodyDepartment for Education South Australia
Postcode5290
RemotenessOuter Regional
ACARA ID49467
Student Background
Total Enrolments778
Gender Split390 girls / 388 boys
Indigenous Students7%
Language Background Other Than English10%
English Background90%
Socio-Educational Advantage Distribution
Source: ACARA School Profile (2025)
Enrolment by Year Level
778 students across 7 year levels (2025)
Yr 7142
Yr 8107
Yr 9121
Yr 10139
Yr 11132
Yr 12119
Secondary Ungraded18
Source: ACARA Enrolments by Grade (2025)
Staffing
Teaching Staff60 (55.9 FTE)
Non-Teaching Staff39 (34.1 FTE)
Total Staff99
Student:Teacher Ratio13.9:1
Source: ACARA School Profile (2025)