Blacktown Boys High School vs St Marys Senior High School
A head-to-head comparison of two secondary schools in New South Wales, 13 km apart, using official ACARA 2025 data. Best value in each row is highlighted.
Blacktown Boys High School
Blacktown · Government high school · 7-12
898 students · ICSEA 1053
St Marys Senior High School
St Marys · Government high school · 11-12
926 students · ICSEA 1052
| Measure | Blacktown Boys High School Blacktown NSW | St Marys Senior High School St Marys NSW |
|---|---|---|
| Success Index | 67 Top 25% | 62 Top 50% |
| State rank (type) | #141 of 539 | #184 of 539 |
| National rank (type) | #347 of 1,472 | #463 of 1,472 |
| Sector | Government | Government |
| Type | Secondary | Secondary |
| Year range | 7-12 | 11-12 |
| Students | 898 | 926 |
| Girls / boys | 0 / 898 | 564 / 362 |
| Foundation intake | – | – |
| Year 7 cohort | 177 | – |
| Year 12 cohort | 94 | 463 |
| VCE median study score VCAA, latest year | – | – |
| VCE study scores 40+ | – | – |
| 5-year enrolment growth | +26% | +2% |
| ICSEA Average 1000 | 1053 | 1052 |
| ICSEA percentile | 69th | 69th |
| Top SEA quarter | 24% | 22% |
| Bottom SEA quarter | 19% | 17% |
| Students per teacher | 13.5 | 13.7 |
| Teaching staff (FTE) | 66.6 | 67.6 |
| Non-teaching staff (FTE) | 16.0 | 13.0 |
| Language background other than English | 88% | 73% |
| Indigenous students | 2% | 2% |
| Suburb | Blacktown 2148 | St Marys 2760 |
| Council area | Blacktown | Penrith |
| Remoteness | Major Cities | Major Cities |
| Website | blacktownb-h.schools.nsw.gov.au | stmaryssen-h.schools.nsw.gov.au |
The verdict
- •Blacktown Boys High School scores higher on the Success Index (67.4 vs 62.1).
- •Blacktown Boys High School has the higher ICSEA (1053 vs 1052), indicating a more advantaged community.
- •St Marys Senior High School is the larger school with 926 students compared with 898.
- •Blacktown Boys High School has grown faster over five years (26% vs 2%).
The Success Index summarises community advantage, resourcing and momentum from ACARA data. It does not measure teaching quality, results or fit. Methodology.
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Frequently asked questions
Is Blacktown Boys High School better than St Marys Senior High School?
On the Success Index, Blacktown Boys High School ranks higher (67.4 vs 62.1 out of 100). The index measures community advantage and momentum from ACARA data, not teaching quality, so visit both schools before deciding.
How far apart are Blacktown Boys High School and St Marys Senior High School?
About 13 km in a straight line, between Blacktown and St Marys in New South Wales.
Which has the better student-to-teacher ratio?
Blacktown Boys High School has 13.5 students per full-time-equivalent teacher and St Marys Senior High School has 13.7.
How do Blacktown Boys High School and St Marys Senior High School rank in NSW?
Blacktown Boys High School is 141st of 539 and St Marys Senior High School is 184th of 539 among secondary schools in New South Wales on the 2025 Success Index.