| 1 | St Marys Senior High School | St Marys | English (Advanced) | 28 |
| 2 | St Marys Senior High School | St Marys | General Mathematics | 22 |
| 3 | St Marys Senior High School | St Marys | Society and Culture | 21 |
| 4 | St Marys Senior High School | St Marys | Biology | 12 |
| 5 | St Marys Senior High School | St Marys | Visual Arts | 11 |
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| 6 | St Marys Senior High School | St Marys | French Beginners | 9 |
| 7 | St Marys Senior High School | St Marys | Personal Development, Health and Physical Education | 9 |
| 8 | St Marys Senior High School | St Marys | Senior Science | 9 |
| 9 | St Marys Senior High School | St Marys | Mathematics Extension 1 | 7 |
| 10 | St Marys Senior High School | St Marys | Business Studies | 6 |
| 11 | St Marys Senior High School | St Marys | Community and Family Studies | 6 |
| 12 | St Marys Senior High School | St Marys | Filipino Continuers | 6 |
| 13 | St Marys Senior High School | St Marys | Legal Studies | 6 |
| 14 | St Marys Senior High School | St Marys | Mathematics | 6 |
| 15 | St Marys Senior High School | St Marys | English Extension 1 | 5 |
| 16 | St Marys Senior High School | St Marys | Food Technology | 5 |
| 17 | St Marys Senior High School | St Marys | Studies of Religion II | 5 |
| 18 | St Marys Senior High School | St Marys | English as a Second Language | 4 |
| 19 | St Marys Senior High School | St Marys | Information Processes and Technology | 4 |
| 20 | St Marys Senior High School | St Marys | Music 1 | 4 |
| 21 | St Marys Senior High School | St Marys | Chemistry | 3 |
| 22 | St Marys Senior High School | St Marys | Hospitality Examination | 3 |
| 23 | St Marys Senior High School | St Marys | Spanish Beginners | 3 |
| 24 | St Marys Senior High School | St Marys | Textiles and Design | 3 |
| 25 | St Marys Senior High School | St Marys | Ancient History | 2 |
Source: NSW Education Standards Authority (NESA).
Supplementary data from school publications.
Supplementary data from school publications.
Last Updated: 14 Feb 2023