Skip to content
S

Gawler and District College B-12 vs Trinity College North

A head-to-head comparison of two combined schools in South Australia, 1.6 km apart, using official ACARA 2025 data. Best value in each row is highlighted.

MeasureGawler and District College B-12
Evanston SA
Trinity College North
Evanston South SA
Success Index
21
Lower 50%
43
Lower 50%
State rank (type)#143 of 145#74 of 145
National rank (type)#1234 of 1,259#805 of 1,259
SectorGovernmentIndependent
TypeCombinedCombined
Year rangeU, R-12R-10
Students1,247914
Girls / boys607 / 640461 / 453
Foundation intake6157
Year 7 cohort141117
Year 12 cohort142–
VCE median study score
VCAA, latest year
––
VCE study scores 40+––
5-year enrolment growth-1%+6%
ICSEA
Average 1000
9321040
ICSEA percentile19th64th
Top SEA quarter3%17%
Bottom SEA quarter59%19%
Students per teacher13.815.6
Teaching staff (FTE)90.658.7
Non-teaching staff (FTE)56.430.4
Language background other than English10%15%
Indigenous students12%2%
SuburbEvanston 5116Evanston South 5116
Council areaGawlerGawler
RemotenessMajor CitiesMajor Cities
Websitewww.gdc.sa.edu.auwww.trinity.sa.edu.au

The verdict

  • •Trinity College North scores higher on the Success Index (42.9 vs 21.0).
  • •Trinity College North has the higher ICSEA (1040 vs 932), indicating a more advantaged community.
  • •Gawler and District College B-12 has fewer students per teacher (13.8 vs 15.6).
  • •Gawler and District College B-12 is the larger school with 1,247 students compared with 914.
  • •Trinity College North has grown faster over five years (6% vs -1%).
  • •Gawler and District College B-12 is a government school while Trinity College North is an independent 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 Gawler and District College B-12 better than Trinity College North?

On the Success Index, Trinity College North ranks higher (42.9 vs 21.0 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 Gawler and District College B-12 and Trinity College North?

About 1.6 km in a straight line, between Evanston and Evanston South in South Australia.

Which has the better student-to-teacher ratio?

Gawler and District College B-12 has 13.8 students per full-time-equivalent teacher and Trinity College North has 15.6.

How do Gawler and District College B-12 and Trinity College North rank in SA?

Gawler and District College B-12 is 143rd of 145 and Trinity College North is 74th of 145 among combined schools in South Australia on the 2025 Success Index.