Skip to content
S

Gladstone High School vs St Joseph's Parish School

A head-to-head comparison of two schools in South Australia, 900 m apart, using official ACARA 2025 data. Best value in each row is highlighted.

MeasureGladstone High School
Gladstone SA
St Joseph's Parish School
Gladstone SA
Success Index
47
Lower 50%
64
Top 50%
State rank (type)#38 of 84–
National rank (type)#798 of 1,472–
SectorGovernmentCatholic
TypeSecondaryPrimary
Year range7-12R-6
Students18353
Girls / boys85 / 9830 / 23
Foundation intake–5
Year 7 cohort32–
Year 12 cohort18–
VCE median study score
VCAA, latest year
––
VCE study scores 40+––
5-year enrolment growth+39%+6%
ICSEA
Average 1000
9671046
ICSEA percentile32th67th
Top SEA quarter5%24%
Bottom SEA quarter43%23%
Students per teacher10.09.3
Teaching staff (FTE)18.25.7
Non-teaching staff (FTE)10.13.8
Language background other than English0%4%
Indigenous students5%2%
SuburbGladstone 5473Gladstone 5473
Council areaNorthern AreasNorthern Areas
RemotenessOuter RegionalOuter Regional
Websitewww.gladstonehs.sa.edu.auwww.stjoglad.catholic.edu.au

The verdict

  • •St Joseph's Parish School scores higher on the Success Index (63.9 vs 46.9).
  • •St Joseph's Parish School has the higher ICSEA (1046 vs 967), indicating a more advantaged community.
  • •St Joseph's Parish School has fewer students per teacher (9.3 vs 10.0).
  • •Gladstone High School is the larger school with 183 students compared with 53.
  • •Gladstone High School has grown faster over five years (39% vs 6%).
  • •Gladstone High School is a government school while St Joseph's Parish School is a catholic school, so fees and enrolment rules differ.

The Success Index summarises community advantage, resourcing and momentum from ACARA data. It does not measure teaching quality, results or fit. Methodology.

Free academic assessment

Torn between two schools? Start with your child.

Whichever you choose, a free Success Tutoring assessment shows exactly where your child is in English and Maths and how to get ahead before the next school year.

  • Personalised learning plan mapped to the Australian Curriculum
  • English & Maths from Kindergarten to Year 12
  • Flexible memberships, no lock-in contracts
  • Your nearest centre: Success Tutoring Windsor Gardens

No cost, no obligation. By submitting you agree to be contacted by Success Tutoring about your enquiry. See our privacy policy.

Frequently asked questions

Is Gladstone High School better than St Joseph's Parish School?

On the Success Index, St Joseph's Parish School ranks higher (63.9 vs 46.9 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 Gladstone High School and St Joseph's Parish School?

About 900 m in a straight line, between Gladstone and Gladstone in South Australia.

Which has the better student-to-teacher ratio?

Gladstone High School has 10.0 students per full-time-equivalent teacher and St Joseph's Parish School has 9.3.

How do Gladstone High School and St Joseph's Parish School rank in SA?

Gladstone High School is 38th of 84 and St Joseph's Parish School is unranked among secondary schools in South Australia on the 2025 Success Index.