Overview
St Marys Senior High School is a government secondary school in St Marys, New South Wales, serving 11-12. The school has 926 enrolled students. Its ICSEA value is 1052 (above average). The student-to-teacher ratio is 13.7:1. The school is located in a SEIFA IRSD decile 3 area.
Source: ACARA School Profile 2025 (2025)
Key Facts
SectorGovernment
School TypeSecondary
Year Range11-12
Governing BodyNSW Department of Education
Postcode2760
LGAPenrith
RemotenessMajor Cities
ACARA ID40438
Student Background
Total Enrolments926
Gender Split564 girls / 362 boys
Indigenous Students2%
Language Background Other Than English73%
English Background27%
Socio-Educational Advantage Distribution
Source: ACARA School Profile (2025)
Enrolment by Year Level
926 students across 2 year levels (2025)
Yr 11463
Yr 12463
Source: ACARA Enrolments by Grade (2025)
Staffing
Teaching Staff66 (67.6 FTE)
Non-Teaching Staff15 (13.0 FTE)
Total Staff81
Student:Teacher Ratio13.7:1
Source: ACARA School Profile (2025)